The HARDEST Logic Puzzle Ever (Simpler Version): Two Doors To Freedom Riddle

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  • เผยแพร่เมื่อ 11 มี.ค. 2017
  • An evil warden holds you prisoner, but offers you a chance to escape. There are 3 doors A, B, and C. Two of the doors lead to freedom and the third door leads to lifetime imprisonment, but you do not which door is what type. You are allowed to point to a door and ask a single yes-no question to the warden. If you point to a door that leads to freedom, the warden does answer your question truthfully. But if you point to the door that leads to imprisonment, the warden answers your question randomly, either saying "yes" or "no" by chance. Can you think of a question and figure out a way to escape for sure?
    My blog post for this video: wp.me/p6aMk-55e
    Source
    This puzzle is a variation of the ace and jacks problem, a preliminary problem in the paper about “the hardest logic puzzle ever.” Boolos, George (1996). “The hardest logic puzzle ever”. The Harvard Review of Philosophy. 6: 62-65. www.hcs.harvard.edu/~hrp/issue...
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  • @MindYourDecisions
    @MindYourDecisions  7 ปีที่แล้ว +201

    I forgot to put the source in the video description originally. This puzzle is a variation of the ace and jacks problem, a preliminary problem in the paper about “the hardest logic puzzle ever.” Boolos, George (1996). “The hardest logic puzzle ever”. The Harvard Review of Philosophy. 6: 62-65. www.hcs.harvard.edu/~hrp/issues/1996/Boolos.pdf
    TED-Ed did a video about "the hardest logic puzzle ever" they called "the three gods riddle." th-cam.com/video/LKvjIsyYng8/w-d-xo.html

    • @Krowphay
      @Krowphay 7 ปีที่แล้ว +3

      You're meant to assume that you can only choose one door to open, and the question that you ask is supposed to help you determine which one to choose. Hope this helps you understand!

    • @mudkip_btw
      @mudkip_btw 7 ปีที่แล้ว +1

      MindYourDecisions I figured it out :D

    • @wilsonofcanada
      @wilsonofcanada 7 ปีที่แล้ว +4

      This shows that the warden is not evil enough; 66.6 % by chance and 100% by logic.

    • @TotalInfluencer
      @TotalInfluencer 6 ปีที่แล้ว +5

      Another answer- Point A and ask - Do A and B lead to freedom? If YES choose B, if NO choose C.

    • @ManHeyuan
      @ManHeyuan 6 ปีที่แล้ว +2

      MindYourDecisions
      My single question:
      If I were to ask you 100 times, as to whether this door could lead me to freedom, what would your answer be?
      If the door could lead me to freedom, the answer would be a resounding “Yes”.
      If the door could lead me to life-imprisonment, his random answering technique, based on statistics, should produce a 50-50 probability.
      Therefore logically, his answer would neither be a resounding Yes, nor No.
      Technically, I do abide by all the rules, of this logical puzzle, and statistical theory.

  • @jashton8710
    @jashton8710 6 ปีที่แล้ว +1105

    If he is an evil warden, all the doors would lead to imprisonment and the whole ordeal would have been a cruel joke.

    • @Dark_Voice
      @Dark_Voice 5 ปีที่แล้ว +17

      Actually that is what imo happens here.
      He gave him false hope in saying that there are 2 freedom doors and 1 imprisonment.
      When you ask if B leads to freedom. Hell say "Yes". (spoiler: its a lie) Since you thought that if he says "Yes" then the B door is freedom youll choose B door and you got imprisoned.
      Since if door A lies about Door B leading to freedom => Door A is imprisonment itself but also since he lied about B leading to freedom, B is imprisonment as well.
      So in the "Yes" (Lie) scenario only C would be freedom (or at least possibly could be) and since you chose B he got you because you believe a lie in the very beginning. If Yes is a lie there are 2 imprisonments and only 1 freedom (and thats only maybe).

    • @alex2005z
      @alex2005z 3 ปีที่แล้ว +8

      @@Dark_Voice he will make you think you chose the wrong door, but all of them lead to hell

    • @alaamhmd1158
      @alaamhmd1158 2 ปีที่แล้ว +5

      Cool plot twist

    • @joncleek5406
      @joncleek5406 2 ปีที่แล้ว +2

      No. You have your "if and then" backwards. He's also evil if you ask if door A leads to freedom, he says yes, and you're imprisoned for life (as possible in the riddle). The Warden is evil regardless.

    • @kingmorons
      @kingmorons 2 ปีที่แล้ว +1

      so... america?

  • @sarahb3nyakar
    @sarahb3nyakar 4 ปีที่แล้ว +586

    Hey thanks man ii was stuck in this situation a while back but then I remembered your video and now I'm free

    • @drenz1523
      @drenz1523 4 ปีที่แล้ว +6

      Oh that kind of situation exist?

    • @RGC_animation
      @RGC_animation 4 ปีที่แล้ว +1

      @@drenz1523 Where you don't even need to ask the question, considering the odd of losing!

    • @sujalarora8947
      @sujalarora8947 3 ปีที่แล้ว +2

      🤣🤣🤣

    • @alex2005z
      @alex2005z 3 ปีที่แล้ว +1

      @@RGC_animation bruh never take a 2/3 odd on something important. Thats to much risk. This situation is just for the puzzle, but pls dont risk anything important on a 2/3 chance. Unless you have to.

    • @RGC_animation
      @RGC_animation 3 ปีที่แล้ว +1

      @@alex2005z Too late!

  • @NXeta
    @NXeta 7 ปีที่แล้ว +421

    thought for a sec it'd be the "lions who haven't eaten in 3 years" riddle lol

    • @expiredmilk5435
      @expiredmilk5435 3 ปีที่แล้ว +5

      Same

    • @ddebenedictis
      @ddebenedictis 3 ปีที่แล้ว +10

      So, the rotting pile of lion's bones puzzle 😂

    • @RichRBLX
      @RichRBLX 2 ปีที่แล้ว +5

      all riddles from 7 second riddles and bright side are crap these logic puzzles and stuff are the good ones

    • @zimap
      @zimap ปีที่แล้ว

      @@RichRBLX i agree

  • @AstroTibs
    @AstroTibs 3 ปีที่แล้ว +65

    Oh. That's a simple solution.
    I envisioned asking something like a paradoxical question, or something he can't know the answer to like "is the third character of my email password a 'g'?"
    If he answers yes or no, then it's the imprisonment door. If it's a freedom door he'll answer "truthfully": "I don't know" or "there is no answer."

    • @Eggscargot
      @Eggscargot 2 ปีที่แล้ว +12

      In these sorts of riddles I always imagine the warden is omniscient.

    • @AstroTibs
      @AstroTibs 2 ปีที่แล้ว +7

      @@Eggscargot true-but non-standard answers are always fun

    • @Nonamelol.
      @Nonamelol. ปีที่แล้ว +3

      You thought that was simple? I said ask every door if they’re the door they’re being said to be many times and whichever changes answer is the incorrect one

    • @Mustard0981
      @Mustard0981 ปีที่แล้ว +10

      Doesn't follow the rules, you have to ask a yes-no question

    • @Nonamelol.
      @Nonamelol. ปีที่แล้ว +8

      @@Mustard0981 “is the third character of my email a g” *IS* a yes or no answer.

  • @MCKoolperson9
    @MCKoolperson9 7 ปีที่แล้ว +373

    wtf kinda warden gives you a 2/3 chance for escape, then lets you ask a question?

    • @EliteGeeks
      @EliteGeeks 5 ปีที่แล้ว +38

      the same dumbass warden who lets you add that door to the question without mentioning it verbally.

    • @matthewryan4844
      @matthewryan4844 3 ปีที่แล้ว +11

      @@EliteGeeks and then lets you escape freely if you figure it out

    • @manah2882
      @manah2882 3 ปีที่แล้ว +14

      The same warden who is bound to answer any question truthfully as long as you're pointing to the door that leads to freedom. These logic problems have many logical fallacies to be called the perfect logic puzzle.

    • @rosepinkskyblue
      @rosepinkskyblue 3 ปีที่แล้ว +9

      Chaotic evil

    • @alex2005z
      @alex2005z 3 ปีที่แล้ว +6

      @@manah2882 it is a logical puzzle. Risking is a 2/3 chance. This is 1/1

  • @SridevHumphreys
    @SridevHumphreys 7 ปีที่แล้ว +73

    I really liked this problem. At first, I thought how can a random answer provide information but then I realized that the answer was not always random. And this small difference allows for a solution. In my mind, I created a table instead of a tree.
    Door A Door B Door C Answer
    Freedom Freedom Prison Yes
    Freedom Prison Freedom No
    Prison Freedom Freedom Yes or No
    Of course, the result is the same - yes pick door B, no pick door C.

    • @leif1075
      @leif1075 ปีที่แล้ว +1

      What donyou mean always B it depends on the question. Right. My version is similar to Oresh except I point point a door and ask does the door next to it lead to prison? If he says yes pick the third door i.e. C if I point to A and ask abiut B, if he says No pick B the door I ask about..see what I mean?

  • @mittfh
    @mittfh 7 ปีที่แล้ว +216

    This reminds me of the riddle concerning two doors (one leading to freedom, the other to certain death / imprisonment, but you don't know which is which) and two guards (one always answers truthfully, the other always lies, but again you don't know which).
    In that scenario, the best question is apparently "If I asked the other guard which door leads to freedom, what would he say?", then you take the _other_ door, as the question guarantees you'll get the wrong answer.

    • @teamawesomeness7137
      @teamawesomeness7137 4 ปีที่แล้ว +4

      "in which of these two directions do you live?"

    • @megauser8512
      @megauser8512 3 ปีที่แล้ว

      That makes sense.

    • @RichRBLX
      @RichRBLX 2 ปีที่แล้ว +4

      the riddle reminds me of the three alien gods riddle on tededs channel

    • @teletummy
      @teletummy 2 ปีที่แล้ว +4

      What about something like
      “Does 2 + 2 = 4?”
      Then if they said use, take the door and if not, the other door

    • @pojan7326
      @pojan7326 2 ปีที่แล้ว +10

      @@teletummy
      U only can ask 1 question and the guard didnt stand beside the door
      So if you already know which guard is the liar or truthfully, u cant ask more question

  • @moonythespoonie9551
    @moonythespoonie9551 5 ปีที่แล้ว +66

    My first thought was to ask a paradox question (something like "will you say no?") so he'll be stumped if he tries to tell the truth

    • @robinguillard7042
      @robinguillard7042 3 ปีที่แล้ว +8

      This was also my thought, I think it seems a valid solution!

    • @kencur9690
      @kencur9690 3 ปีที่แล้ว +1

      That was also my first thought, but it doesn’t work.

    • @kencur9690
      @kencur9690 3 ปีที่แล้ว +1

      @@robinguillard7042 it isn’t.

    • @drwaffle7781
      @drwaffle7781 3 ปีที่แล้ว +5

      If you can ask a yes/no question that the warden has no way of knowing the answer to, then their truthful answer should be something like, "I don't know." If they answer yes or no in that situation, the other doors should lead to freedom.

    • @kencur9690
      @kencur9690 3 ปีที่แล้ว +2

      @@drwaffle7781 the rules clearly state that the lying warden can answer any question yes or no randomly.

  • @Scott.Sandifer
    @Scott.Sandifer 3 ปีที่แล้ว +61

    I'm almost positive that this will actually happen to me at some point, and I won't remember how this works.

    • @ddebenedictis
      @ddebenedictis 3 ปีที่แล้ว +6

      The "evil" warden will let you use his laptop to look it up on TH-cam

  • @susheelg
    @susheelg 4 ปีที่แล้ว +52

    Omg this just happened to me. I remember watching this before and came back to thank you cause I probably would have died if I hadnt watched this

  • @akiranishiki137
    @akiranishiki137 7 ปีที่แล้ว +112

    I thought about pointing at one door and asking if his answer will be no.
    If it leads to freedom he can not answer truthfully and thus will say nothing,
    if he answers, regardless of the answer it must be a random answer and thus the other two doors must lead to freedom.

    • @100najaja
      @100najaja 7 ปีที่แล้ว +8

      I've thought about something similiar, but we can't be sure what the author meant by a "yes or no question".

    • @CyclopGamingChannel
      @CyclopGamingChannel 7 ปีที่แล้ว +15

      Pretty sure a "yes no question" implies that the answers may only be yes or no and if your question can have no answer then it's not a "yes no question". Now you would be able to ask your question but even if you were pointing at the bad door you'd get no answer since you're question didn't follow the rules.

    • @yashgupta8734
      @yashgupta8734 7 ปีที่แล้ว +6

      AlekG Tho it has "no" answer 😂😂

    • @100najaja
      @100najaja 7 ปีที่แล้ว +10

      actually the part "If it leads to freedom he can not answer truthfully and thus will say nothing," is wrong. It's stated that he will answer truthfully, so in this case it all just wouldn't make sense. I think it's reasonable that when we are trying to solve the riddle, we pick such definition of "a yes or no question", that the riddle makes sense, thank you.

    • @akiranishiki137
      @akiranishiki137 7 ปีที่แล้ว +7

      Okay that makes sense to me. Thank you for this answer.

  • @icannotchoose
    @icannotchoose 7 ปีที่แล้ว +14

    That took me a bit, but it was clever. I thought, "I don't want to have to choose to go through the random one" and was able to work it out but it was stimulating. Nice

  • @iHawkXJ
    @iHawkXJ 3 ปีที่แล้ว +11

    He ain't evil if he offers a chance to escape .. he's just bored lmao

  • @memegod3029
    @memegod3029 6 ปีที่แล้ว +77

    *points to b* does door b lead to freedom?
    -Yes
    Aha!
    *walks in and dies*

    • @drenz1523
      @drenz1523 4 ปีที่แล้ว +9

      It says imprisonment, not fatal organ failure

    • @WaterDroplet02
      @WaterDroplet02 3 ปีที่แล้ว +8

      @@drenz1523 no, its freedom. freedom from your mortal bounds

    • @drenz1523
      @drenz1523 3 ปีที่แล้ว

      @@WaterDroplet02 no i said the bad one not freedom

  • @sjege
    @sjege 7 ปีที่แล้ว +64

    My awnser:
    I would point to A and ask if either A or B leads to inprisonment.
    If he says Yes, choose C.
    If he says No, choose B.
    because if he says No either C is inprisonment or he is lying thus A being inprisonment.
    Always fun!

    • @sjege
      @sjege 7 ปีที่แล้ว +1

      Mine is also a genuine non paradox awnser, not like the others :P

    • @Tiemuuu
      @Tiemuuu 7 ปีที่แล้ว

      excellent answer! also, are you a pewdiepie conscript?

    • @sjege
      @sjege 7 ปีที่แล้ว

      Teemu Rantanen yeah, sort-of

    • @borakocabas4794
      @borakocabas4794 7 ปีที่แล้ว

      The TH-cam Addict nice solution :)

    • @RayVitoles
      @RayVitoles 7 ปีที่แล้ว

      that was what my intuition said to me.

  • @sumantkumarrai270
    @sumantkumarrai270 3 ปีที่แล้ว +54

    *Everyone putting their logic*
    Me - "are you allowed to peek through the door?"

    • @lmcgregoruk
      @lmcgregoruk 3 ปีที่แล้ว +5

      "Can you think of a a question and figure out how to escape for sure?"
      Me- No.

  • @christinebeames2311
    @christinebeames2311 3 ปีที่แล้ว +5

    Hi pressh , this kept me awake hours last night , I finally understood it thank you

  • @coreyeverett5500
    @coreyeverett5500 2 ปีที่แล้ว +3

    Everyone is saying the warden is evil but it's actually really nice of him to give you at least a 2/3rds chance of walking away free

  • @sammcewan9544
    @sammcewan9544 7 ปีที่แล้ว +20

    Without watching rest of video here's my solution:
    Point to door A and ask "do door A and B lead to freedom?"
    If warden answer Yes go through door B (either A or C lead to imprisonment)
    If warden answers No go through door C (Door A leads to imprisonment)

    • @No_king1143
      @No_king1143 3 ปีที่แล้ว +3

      you literally just watched the video

    • @gautamkelkar2132
      @gautamkelkar2132 3 ปีที่แล้ว +2

      @@No_king1143 He must be ded now

    • @No_king1143
      @No_king1143 3 ปีที่แล้ว +2

      @@gautamkelkar2132 F for them

    • @sketin
      @sketin 3 ปีที่แล้ว +2

      That was my solution too, though I would add that if the warden answers "No" and he's being truthful, then door B leads to imprisonment. Only when he's being random would door A lead to imprisonment.

    • @AshwinNarayanplus
      @AshwinNarayanplus 2 ปีที่แล้ว

      @@No_king1143 That is another puzzle; did he take a hidden door and travel back in time to answer the question before he read it? 😉 😀 😀

  • @markmiretsky4229
    @markmiretsky4229 3 ปีที่แล้ว +7

    Beautiful puzzle! Love it! ❤

  • @hoppz1414
    @hoppz1414 7 ปีที่แล้ว +3

    I came up with, point at door 1 and ask "does the door i'm pointing at have the same outcome as door 2?"
    if he says yes, you pick door 2 (because if it was the truth then door 2 will work, and if he says no then door 1 was the imprisonment door, so door 2 has to lead to freedom)
    if he says no you pick door 3 (because if it was the truth then either door 1 or 2 are the imprisonment door, and if it was a lie then door 1 or 2 have to lead to imprisonment)

  • @Chriib
    @Chriib 4 ปีที่แล้ว +6

    What is the point in pointing at door A?

    • @gregpahren7441
      @gregpahren7441 3 ปีที่แล้ว +2

      The door you point at indicates whether the Warden is truthful or just answers randomly.

    • @tykemorris
      @tykemorris 3 หลายเดือนก่อน

      It doesn't matter which door you point at as long as you are asking about one of the other two doors. For example, you could point at Door C and ask about either A or B. As long as you don't go through the door you pointed at and you trust the answer as true.
      The reason you can trust the answer as true is because, if it isn't true, then the door you are pointing at is the imprisonment door. OTOH, if you are not pointing at the imprisonment door, then he will tell you the truth.

  • @Phlebas
    @Phlebas 3 ปีที่แล้ว +19

    I've been stumped by logic puzzles before, but I'm happy to say I was able to work this one out in less than a minute and I didn't even have to break out the pencil and paper. My thought process was, "would pointing to a door and asking if it led to freedom help? No? What about pointing to a door and asking if _another_ door would lead to freedom?" Then it was just a matter of playing through all of the scenarios.

    • @slacebo7306
      @slacebo7306 11 หลายเดือนก่อน +1

      yes me too, very satisfying

  • @janinamuller4323
    @janinamuller4323 7 ปีที่แล้ว +35

    Why are there so many evil wardens that will hold you as a captive :(

    • @TuberTugger
      @TuberTugger 7 ปีที่แล้ว +4

      Or maybe you committed a terrible crime. And the warden is nice to give you a chance for redemption.
      Glass half full.

    • @rosepinkskyblue
      @rosepinkskyblue 3 ปีที่แล้ว +1

      Because of Beauty and the beast fanfic

  • @bg6b7bft
    @bg6b7bft 2 ปีที่แล้ว +4

    "Is my next coin flip going to be heads?"
    The honest answer would be "I don't know", therefore the door is safe.
    An answer of yes or no is just as random as the coin flip, therefore the door is not safe.

    • @AlDunbar
      @AlDunbar 2 ปีที่แล้ว

      I don't know could be the answer he chooses at random.

    • @bg6b7bft
      @bg6b7bft 2 ปีที่แล้ว

      @@AlDunbar It said if he chooses randomly, it would be either "yes" or "no"

    • @AlDunbar
      @AlDunbar 2 ปีที่แล้ว

      @@bg6b7bft sorry I didn't read tge riddle carefully enough. Thanks

  • @Sem-mx4pc
    @Sem-mx4pc 2 ปีที่แล้ว +3

    Im glad i figured this one out, since I am not really good in these asking-question-riddles. But I think it would have been better, if you would have presented the logic the other way around:
    If the warden says Yes, then door B is safe, regardless if the warden is saying it truthfully or not. Because if he is, then door B is definitly safe. If he chooses randomly then it is also safe to go trough B. If he answers No then you go trough door c with the same logic.
    You did showed the Logic correctly, but for me it would made more sense if you switched it around like this. (Sorry for my bad english)

  • @RobotLVS
    @RobotLVS ปีที่แล้ว +9

    Alternatively, you can ask the warden a yes or no question he cannot possibly know the answer to.
    Since, if you're pointing at a bad door, he must answer yes or no by chance, you can infer that the other two doors lead to freedom if he does so.
    However, in the event that you are pointing at a good door, he cannot truthfully answer anything but "I don't know" or not answer at all.

    • @jacobgoldman5780
      @jacobgoldman5780 8 หลายเดือนก่อน +1

      I would assume this warden would either say that is a wasted question or make you ask a question that has a definitive answer.

  • @amanchandra
    @amanchandra 6 ปีที่แล้ว +8

    Okay same logic, but I thought of asking the question does door A lead the same place as door B

  • @CursedKitten1
    @CursedKitten1 7 ปีที่แล้ว +3

    Yeeeeah :) took me roughly 45 minutes but I did. I asked about door C (while pointing to A) but it is the same solution regardless.
    I somehow intuited it after thinking of the doors as A,B,C instead of in grounded realistic terms.
    Im sitting here trying to tame the thread of logic that flared in my mind which lead to me diagraming it out and getting the answer. Part of me understands but I feel I can understand it more. Annoying.
    To put it another way:
    The tree you drew is exactly that 'thread' but it feels too much like a map and less like I've traveled that land and KNOW it.

  • @mindfood834
    @mindfood834 7 ปีที่แล้ว

    Excellent riddle. Reminds me a little bit of the George Boolos "Hardest Puzzle Logic Puzzle Ever"

  • @rd-pd8xb
    @rd-pd8xb 6 ปีที่แล้ว

    Wonderful problem. Didn’t think of it at all.

  • @JianJiaHe
    @JianJiaHe 7 ปีที่แล้ว +10

    Then the warden has to be patient, because I need to watch this video in front of him to figure it out.

  • @themeantuber
    @themeantuber 2 ปีที่แล้ว +10

    Basically, when you get a negative answer that's an indication that one of the two doors is bad. You take the third one.
    When you get a positive answer, then that's a certain indication that the door you're asking about is good, even if you don't know if the door you're pointing is good or bad. Okay. Got it! Now my brain hurts 🤕 but I got it! 😂

  • @LD-dt1sk
    @LD-dt1sk ปีที่แล้ว +2

    Before I see the answer this is my solution:
    Point to the middle door and ask “Does the door on the left lead me to freedom”
    If the answer is yes go through the left door, otherwise go through the right one
    If the door in the middle was freedom then he will tell you if the door is safe, or in the other hand which one is not, leaving u with the right door which would be guaranteed to have freedom
    You can notice how in neither of those two cases we go through the middle door, if the middle door is imprisonment no matter what answer we gat we won’t go through that one but the freedom ones
    Edit: Nailed it! I didn’t do the same order as him but it doesn’t matter. Also I solved this in like 5-10 seconds I’m smart :)

    • @tykemorris
      @tykemorris 3 หลายเดือนก่อน

      I did the same except asked if it leads to imprisonment.

  • @mortkebab2849
    @mortkebab2849 6 ปีที่แล้ว +1

    OK, so the interesting question for me is what is a general strategy for framing the appropriate question. A useful place to start is to assume that we're going to have to break it down into cases. There are only six cases: all combinations of yes/no and A/B/C being the door leading to imprisonment. Just drawing out the 2 x 3 grid and staring at it suggested to me that the question has to maximize the information being collected by asking something about a door other than the one being pointed to. Then start guessing questions and examining all the cases. The most obvious question is, "does that door lead to freedom?" With that question, an examination of the cases reveals that two of them are impossible, leading to the answer.

  • @aspiringwayfarer
    @aspiringwayfarer ปีที่แล้ว +3

    I would be interested to hear what the strategy would be used if there was only ONE door to freedom, and TWO doors to imprisonment.

  • @victoriam6569
    @victoriam6569 3 ปีที่แล้ว +8

    An interesting variation. Never seen this one before. It was quite easy though but I enjoyed finding the solution anyway, thank you!

    • @victoriam6569
      @victoriam6569 2 ปีที่แล้ว +1

      @@aiman9365 Hahaha 🤣

  • @stevelavalette6898
    @stevelavalette6898 3 ปีที่แล้ว +2

    Inconceivable !

  • @Ratchetpower2
    @Ratchetpower2 2 ปีที่แล้ว

    I didn't figure out the question until I was told but once I knew the right question I was able to work out all the logic in my head.

  • @HappyMatt12345
    @HappyMatt12345 ปีที่แล้ว +7

    I really need to start thinking outside the box more on these. It took me a while to realize the pattern.
    If you point to any door (Door A is the example in the video) and ask if a different door (Door B) leads to freedom, whether Door A leads to freedom or imprisonment you can safely choose Door B if he says yes and Door C if he says no because whether he's telling the truth or not, if he says no, Door C is safe, and if he says yes, Door B is safe (because if he was answering randomly that means both are safe bc Door A leads to imprisonment)

  • @BIueCat
    @BIueCat ปีที่แล้ว +3

    I had guessed something outside of the box, which is to ask the warden a paradoxical question that if he answered honestly, he would have to concede it was not true or false. But if it was the bad door, he would say true or false - and it doesn’t matter which one, you know it’s the bad door because he answered at all. (The wording of the puzzle didn’t say the warden had to strictly answer yes/no, but just that he answered truthfully)

    • @enigma7314
      @enigma7314 6 หลายเดือนก่อน +1

      I came up with the same kind of thing:
      My question was: If I walk through either one of the other 2 doors, will I be free?

  • @mvk_vamsi
    @mvk_vamsi 3 ปีที่แล้ว

    The logic is simple but the interpretation of it is so complicated.
    Btw, excellent question...

  • @ion063
    @ion063 4 ปีที่แล้ว +2

    I tough of : is this door and the one next to it are one good one bad? If answer its yes, puck the third door. If its no pick the door mext to it

  • @tubular618
    @tubular618 6 ปีที่แล้ว +4

    My solution (not as good as OP's): Point to any door and ask "Will I get out of prison?"* If it's a freedom door he will have to truthfully say "I don't know." or not reply. If it's the prison door, he will definitely say "yes" or "no". If he says "I don't know" or nothing take that door. If he says "yes" or "no" take one of the other doors.
    * You could also just ask any unknown question about the future like "Will I live to be 100?"

    • @nottarik9120
      @nottarik9120 6 ปีที่แล้ว

      tubular618 it has to be a yes or no question

    • @driftwisp2797
      @driftwisp2797 6 ปีที่แล้ว +1

      "Will I get out of prison" is definitely a yes or no question. It's just not one that anyone knows the answer to yet.

    • @tykemorris
      @tykemorris 3 หลายเดือนก่อน

      Saying "I don't know" doesn't tell you anything because the warden could lie if you pointed at the wrong door. The rules are it must be a yes or no answer so I think you would get life imprisonment by default.

  • @QualityContentX
    @QualityContentX 7 ปีที่แล้ว +41

    We take two doors and push it somewhere else!

    • @twenzu915
      @twenzu915 3 ปีที่แล้ว

      the heck?

    • @alex2005z
      @alex2005z 3 ปีที่แล้ว

      Just use the warden as a test dummy

    • @nobodyknows1106
      @nobodyknows1106 3 ปีที่แล้ว

      Why not pick door A?

    • @fallout8516
      @fallout8516 3 ปีที่แล้ว +1

      Patrick reference?

  • @alpanaabhyankar8652
    @alpanaabhyankar8652 7 ปีที่แล้ว +1

    Interesting Puzzle.
    Ron and Sean were hostel friends both good at logic.
    Once Ron was visiting Sean and during their conversation asked Sean ..... How old were Sean's three daughters.
    Sean answered as follows:
    The sum of the ages of my three daughters is 13.
    The product of the ages is equal their hostel room number.
    Ron says he is unable to guess the ages and needs one more clue.
    On this Sean says My eldest daughter is sleeping upstairs.
    On this Ron guesses all the three ages correctly what are their ages?

    • @yurenchu
      @yurenchu 6 ปีที่แล้ว +1

      Answer: 2, 2 and 9.

  • @riteshbhartiya6155
    @riteshbhartiya6155 6 ปีที่แล้ว +2

    Hey ! there is a text error; in the video , in question.
    But you do not " know " which door is of what type.
    Know is missing.

  • @Epoch11
    @Epoch11 7 ปีที่แล้ว +14

    "But you do not which door is what type" I think there should be "know" in there somewhere.

    • @alex2005z
      @alex2005z 3 ปีที่แล้ว +1

      Thats to make it harder. First you must complete the sentence, then solve the riddle

  • @TheGamerAdventurersX
    @TheGamerAdventurersX 5 ปีที่แล้ว +5

    I love how I thought only 1 of them lead to freedom*face slap*

    • @puliverius
      @puliverius 3 ปีที่แล้ว

      You are not alone on that :)

  • @sanseng000
    @sanseng000 6 ปีที่แล้ว +1

    Yes, I figured this out
    Actually there are many puzzles which uses this feedback technique, like a + × -=- and -×+=-
    So the key is multiply, in this feed one result to the other, then the result does not depend on true/false (+/-)

  • @chessandmathguy
    @chessandmathguy 2 ปีที่แล้ว

    Beautiful.

  • @OLLIE251391
    @OLLIE251391 7 ปีที่แล้ว +14

    When pointing to door A and asking whether door B leads to freedom, the warden's answer of yes or no may either be a truthful answer or a random answer.
    If door A leads to freedom then the warden's answer will be truthful. If the answer is yes, this means that door B leads to freedom; if the answer is no then door C leads to freedom.
    If door A leads to imprisonment then the warden's answer will be random. The answer of yes or no is irrelevant. Doors B and C have to lead to freedom.
    We don't know whether door A leads to freedom or imprisonment so we don't know whether the warden's answer is truthful or random. Through studying the possible outcomes we can conclude that a yes answer will always indicate that door B leads to freedom and a no answer will always indicate that door C leads to freedom.

  • @LinkingYellow
    @LinkingYellow 3 ปีที่แล้ว +3

    How about something like "are you answering my current question with a "no"? It would be impossible to answer the question truthfully, so any answer would prove the door isn't safe.

    • @kantarrel1200
      @kantarrel1200 2 ปีที่แล้ว

      but if the door you pointed to while asking that was safe, what would he answer?
      edit: I realized he would probably just say that he doesn't know.

  • @nemesisk79
    @nemesisk79 7 ปีที่แล้ว +1

    I guess I solved it in a way which is equivalent, I thought about pointing the door A and asking if the door B is the same as door A. This case work exactly like your solution if the answer is yes in both of the cases you choose the door B and if the answer is No in both of the cases you choose the door C.

  • @Mushrooms683
    @Mushrooms683 6 หลายเดือนก่อน +1

    Pose a logic puzzle, such as "Will you answer 'no' to this question?" If they can answer the question with a yes or a no, then that was the bad door and don't go through. Otherwise, go through the door you pointed to.

  • @Gs-er2dh
    @Gs-er2dh 5 ปีที่แล้ว +6

    ANSWER: point to door A n ask warden "door B leads to life time imprisonment right?"
    if he says "NO" -open door B
    if he says "YES"- open door C

    • @MatsCooper
      @MatsCooper 4 ปีที่แล้ว +2

      Yes this inverse answer is another distinct solution

    • @andrewpeterson8918
      @andrewpeterson8918 4 ปีที่แล้ว

      Wow you watched the video good job man

  • @steffahn
    @steffahn 7 ปีที่แล้ว +3

    My key insight while figuring it out was that I saw, that when you point at one door, you cannot choose that door no matter what the answer, because that answer would be random in the case you try to avoid, namely that door leading to imprisonment and you choosing it. Under that constraint it was all really simple to know what to ask and which of the other doors to choose on which answer, because what the question was would only be relevant in the case that you point to a door that leads to freedom, so you expect the answer to be right. Just ask which of the other two doors is safe (and put it in a yes-no form of course).

  • @Jeroenemelone
    @Jeroenemelone 5 หลายเดือนก่อน +2

    I'm still confused. How does pointing to door A while asking about door B change anything in contrast to pointing to door B or just not pointkng at all? Isn't the warden just going to answer about door B since that's what you asked for? What am I missing?

    • @tykemorris
      @tykemorris 3 หลายเดือนก่อน

      What you are missing is that the door you are pointing at is either getting you a lie or the truth, so you never pick the door you are pointing at. BUT if it is a lie you are always safe going through either of the other two doors you are not pointing at, because it can only lie if it is the imprisonment door. So you are safe trusting their answer as if it was the truth.

  • @abcd123906
    @abcd123906 7 ปีที่แล้ว +2

    Hint that won't give it away: The door you point to does not have to be directly related to the question you ask.

  • @certifiedfurry
    @certifiedfurry 4 ปีที่แล้ว +3

    couldnt you always go to door C after asking the question because its the way to freedom in both cases

    • @ddebenedictis
      @ddebenedictis 3 ปีที่แล้ว

      Door C does not lead to freedom in the case where A and B both lead to freedom.

  • @culedood123
    @culedood123 7 ปีที่แล้ว +31

    This is similar to the most recent ted-Ed riddle, except the ted-Ed one was a much more complicated version with other factors too.

    • @trixter21992251
      @trixter21992251 7 ปีที่แล้ว

      Exactly, I noticed that too. I have a feeling mindyourdecisions was inspired by it, since they came out within weeks of each other.
      I spent some hours on the TED-Ed one without figuring it out. But having seen the solution to that, this came easily.

    • @abcd123906
      @abcd123906 7 ปีที่แล้ว

      Ape-ocalypse Please provide the link to the TED-Ed video you are referring to. Thanks! :-)

    • @culedood123
      @culedood123 7 ปีที่แล้ว

      it's called "Can you solve the three gods riddle? - Alex Gendler"
      not sure if i can post a link in the youtube comment section

    • @olafdegraaff9198
      @olafdegraaff9198 7 ปีที่แล้ว +1

      I thought exactly the same!

    • @orthodium
      @orthodium 7 ปีที่แล้ว

      Can you provide the link to it?

  • @golden5663
    @golden5663 3 ปีที่แล้ว

    This is one of the very few ones that only took me about a minute to do.

  • @momotaro0410
    @momotaro0410 2 หลายเดือนก่อน

    Thank you for making these videos. Perhaps I need more practice. I don't understand even after your explanation 😅

  • @tensaisenshi
    @tensaisenshi 7 ปีที่แล้ว +102

    I thought in doing that but than I thought it would be against the rules to point to a door and ask about a different door.

    • @adikshithojha3666
      @adikshithojha3666 7 ปีที่แล้ว +10

      Leonardo F. Araujo Exactly, I thought you could only ask a question related to the door you're pointing it.

    • @OhSoUnicornly
      @OhSoUnicornly 7 ปีที่แล้ว +26

      Nothing in the question suggests it'd be against the rules. It doesn't say 'ask a yes-no question about the door you're pointing to'. It just says to point at a door and ask a yes-no question, and that the truth of the warden's answer depends on the door you're pointing at.
      This is a logic puzzle, so take all the instructions at their face value - if something is not logically ruled out by the instructions, then you can do it.

    • @ChannelMath
      @ChannelMath 7 ปีที่แล้ว +3

      it also may be considered strange, then, that we need to point to a door at all, if we are allowed to ask any y/n question.
      Generally great work though from MYD

    • @TuberTugger
      @TuberTugger 7 ปีที่แล้ว +2

      +ChannelMath
      The door you point to determins the validity of the warden's answer. If you didn't point at all, the warden wouldn't be able to answer at all.

    • @tensaisenshi
      @tensaisenshi 7 ปีที่แล้ว +3

      To me the solution is not exactly to be smart but to exploit a flaw on the rules the evil warden gave to you. Just like the lawyers do to free bandits here in Brazil.

  • @heliocentric1756
    @heliocentric1756 7 ปีที่แล้ว +6

    Here is my solution:
    Point at door A and ask: "If door A was the one that leads to prison and I asked you: "do you work for government?" would you answer by yes?"
    If he answered "yes" or "no", then A leads to prison and you go for door B or C.
    If he didn't answer, go for door A.

    • @weckar
      @weckar 5 ปีที่แล้ว +1

      If A did lead to prison, he could answer anything. So if it does not, by proposing what he would say if it did, he can answer anything.

    • @hainsay
      @hainsay 5 ปีที่แล้ว

      @@weckar Yep. He's saying if theree was any answer at all, then you should go for door B or C. But if door A leads to freedom, he cannot answer yes or no, so he wouldn't answer at all.

    • @Ptrrrrrrrr
      @Ptrrrrrrrr 4 ปีที่แล้ว

      He could say 'yes', because he COULD answer 'yes' in that scenario. And if you say 'would you DEFINITELY answer me yes?', he would say 'no' because he isn't sure.
      I mean, it's already cheating a bit, but I don't think it's entirely sound.

  • @katiedouglas19
    @katiedouglas19 7 หลายเดือนก่อน

    Oh, this one is fun. However, it's not that complicated at its core, and it's such a classic that everyone has heard it before. But riddles are always fun the first time, and I did enjoy this one when it was first proposed to me.

  • @dirkp.6181
    @dirkp.6181 8 หลายเดือนก่อน

    Hope I can remember that when it's time and it'll be crucial!

  • @noelnewlon
    @noelnewlon 3 ปีที่แล้ว +4

    You point to any one door then flip a coin, covering it. Without revealing the coin, you ask the warden, "Did the coin come up heads?" If the warden answers that he doesn't know for sure, then you pointed to the freedom door. If the warden answers either yes or no, then the door you pointed to was the door of doom.

    • @shivanisrivastava5667
      @shivanisrivastava5667 2 ปีที่แล้ว

      This is a wonderful answer. 👏

    • @Blockoumi
      @Blockoumi 2 ปีที่แล้ว +1

      but what if he randomly answers I don't know. if the truthful one can say it why isn't it in the range of possibilities of the random one

    • @noelnewlon
      @noelnewlon 2 ปีที่แล้ว +1

      @@Blockoumi To be more precise, you point to a door, and say "I'm going to flip a coin, and if it comes up heads then the freedom door is the one I pointed to." Then, you flip the coin, covering it, and ask the warden, "Did the coin come up heads?" If the warden answers that he doesn't know for sure, then you pointed to the freedom door. This corrected version makes the flip of the coin connected to the door. In the first version, the connection was only implied. No person can with certainty state how a coin has landed given that they can't see the result, so an honest person would have to say that they are not sure. A dishonest person would say emphatically one or the other outcomes.

    • @Blockoumi
      @Blockoumi 2 ปีที่แล้ว

      @@noelnewlon 🤠👍

  • @FulfillMyWill
    @FulfillMyWill 3 ปีที่แล้ว +4

    Point to the any of the doors and ask "how much will be 2+2?" If he answers "4" - pick this door. If he answers "yes" or "no" - pick another.

    • @leahcimoyatse5511
      @leahcimoyatse5511 3 ปีที่แล้ว

      Dang this was my exact solution as well!

    • @shivanichauhan7077
      @shivanichauhan7077 3 ปีที่แล้ว

      The question should be yes-no question as mentioned in the problem

  • @nelsonx5326
    @nelsonx5326 6 ปีที่แล้ว +1

    I might have been on the right track. I thought about pointing to door A and asking if both door B and C lead to freedom. If he said yes he wouldn't be being truthful, one of them would have to be bad for him to tell the truth, B and C are good to go. If he said no then go through door A. I shouldn't have looked at the answer, I would have got it in a month or so.

  • @PhrontDoor
    @PhrontDoor 6 ปีที่แล้ว +2

    That took me WAY longer to work through than I'd thought it would. :(

  • @goseigentwitch3105
    @goseigentwitch3105 3 ปีที่แล้ว +3

    Point at door A and ask "Is 'no' the correct answer to this question?"
    If the Warden answers with "yes" or "no" then you must be pointing at the door to imprisonment as there is no truthful answer.

    • @valentinoromitti6005
      @valentinoromitti6005 2 ปีที่แล้ว +1

      Does it qualifies as a yes/no question though?
      If there is no possible answer, it's probably not a binary question.

  • @notpsy7298
    @notpsy7298 10 หลายเดือนก่อน +3

    I'm proud to have solved it in about 2 minutes. I was expecting a really hard puzzle, but it was fun. I'll try the hard version :)

  • @JMill77
    @JMill77 7 หลายเดือนก่อน

    In your outcomes, first row should read "Yes - Door A or B = Freedom" then for the next line "No - Door A or C = Freedom" then the next line down "Yes - B or C is freedom" and then "No - B or C is freedom" - you're getting steps ahead of what you know with how you explain it and it's only after you compare them that you can see that B is freedom in both "Yes" scenarios and C is freedom in both "No" scenarios

  • @christian9540
    @christian9540 2 ปีที่แล้ว +1

    Super easy. With 2 good and 1 bad, regardless which door you pick the good one tells you a good one or the bad one has to decide for a good and bad door. Either one in both cases one good door has been marked as good.

  • @enkh-undralenkhbayar4468
    @enkh-undralenkhbayar4468 7 ปีที่แล้ว +5

    when u see the warden do a coin flip to do it randomly u know u picked the wrong door

  • @TalentsHunters
    @TalentsHunters 2 ปีที่แล้ว +3

    It would fit also: point door c and ask does one between a and b bring to freedom?

    • @roberthart5189
      @roberthart5189 2 ปีที่แล้ว

      Doesn’t work, if the warden says yes, you don’t know if it was truthful, or just a randomly selected yes.

    • @otapavel10
      @otapavel10 2 ปีที่แล้ว

      If you mean "At least one", then it's a tautology, if you mean "exactly one", then it's the same as asking "is C freedom", none of these work.

  • @miljanmatovic880
    @miljanmatovic880 ปีที่แล้ว

    Great puzzle

  • @dawnscript1
    @dawnscript1 ปีที่แล้ว

    Wow I guess doing lots of puzzles and working on my puzzle solving skills does help, I actually did get this one first try.

  • @alejandrodepalma9589
    @alejandrodepalma9589 7 ปีที่แล้ว +39

    Merely pointing at a door to ask a question about another door makes no sense to me and seems like a cheap loophole against the spirit of the rules.
    The actual solution had to be: pointing at any other than the central door, ask "is this door next to the path to freedom?"
    Now the question refers to the door you actually point at, and it is the content of the question itself what leads to the rest of the reasoning process.

    • @idlingdove
      @idlingdove 7 ปีที่แล้ว +5

      Good point. I too was a little put off by the pointing to one door and asking about another. Yours is a clever way around it.

    • @alejandrodepalma9589
      @alejandrodepalma9589 7 ปีที่แล้ว +1

      idlingdove thank you, I appreciate your comment!

    • @sebastien5048
      @sebastien5048 7 ปีที่แล้ว +6

      "is this door next to the path to freedom?"
      If this is a safe door he will answer yes since there is another safe door.
      If this is the imprisonment door and that he is being honest he will also answer yes.
      You can't distinguish these two situations with your question

    • @alejandrodepalma9589
      @alejandrodepalma9589 7 ปีที่แล้ว +8

      Zygo Petalum if his answer is yes, you pick the central door because you have either been correctly informed or you have been given a random answer, both ways meaning that the central door is safe; on the contrary, if the answer is no, you pick the door at the other end, since that answer might have been truthful, rendering the central door unsafe, or random - either way, the furthest door is safe with a negative reply.

    • @sebastien5048
      @sebastien5048 7 ปีที่แล้ว +1

      ok sorry i thought you said you had to pick the central door.

  • @Treborianus
    @Treborianus 3 ปีที่แล้ว +5

    when the answer of the imprisonment warden is random You can't figure it out which door leads to freedom.

    • @Thebiggestgordon
      @Thebiggestgordon 3 ปีที่แล้ว +4

      You actually can. Using the strat in this video, if the warden answers yes, then either the warden is telling the truth and door b is safe, or the warden was speaking randomly and happened to say yes, in which case the unsafe door is a, therefore door b is safe. It’s the same if he says no, either he was telling the truth and door b is in fact the bad door, in which case door c is safe, or he was speaking randomly, which again means that door a is the unsafe one so door c is still safe.

    • @killedragonyt6353
      @killedragonyt6353 3 ปีที่แล้ว

      you can take other door and imagine that he is saying the truth in base of what he says to select the door
      remember that only 1 door is bad, if he says random is because the door you point is bad, because only if is bad he do random, and therefore the other 2 are good
      you know that if he lies is because the other are correct

  • @weibrot6683
    @weibrot6683 6 หลายเดือนก่อน

    My strategy was completely different, i'd point to a random door and ask "Is the awnser to this question no?" If he would awnser truthfully he couldn't give an awnser, so i know the door is safe, if he says yes or no then i know he awnsered randomly making it the unsafe door

  • @andrewhertzberg6889
    @andrewhertzberg6889 ปีที่แล้ว +1

    Great video. But it could have used a few extra sentences explaining the range of strategies available.

  • @truthrealtalk9703
    @truthrealtalk9703 ปีที่แล้ว +5

    Here’s my solution.
    For this method you must never enter the first door, you only question it.
    Pointing at the first door, ask this:
    “If I asked this door and the middle door an infinite amount of times if this door leads to freedom, would both answers always be yes?”
    Scenario 1:
    Doom - Freedom - Freedom
    If Yes: Enter the middle door
    If No: Enter the last door
    Scenario 2:
    Freedom - Freedom - Doom
    Yes is the only possible answer here.
    Therefore: Enter the middle door
    Scenario 3:
    Freedom - Doom - Freedom
    No is the only possible answer here.
    Therefore: Enter the last door
    So no matter what possible door arrangement you’re dealing with…
    If you get a Yes,
    Freedom is always the middle door guaranteed.
    If you get a No,
    Freedom is always the last door guaranteed.

    • @truthrealtalk9703
      @truthrealtalk9703 ปีที่แล้ว

      Haha I definitely overthought this one. The simpler question in the video does the same thing.
      Either way, freedom is still attained and an eternity in hell is avoided. Happy days!

  • @chinareds54
    @chinareds54 7 ปีที่แล้ว +3

    This one seems easy (especially compared to the Ozo Ulu one). Point to the door in the middle (you're not using that one for sure). Ask "will the door to the right of that lead to freedom"? Assume the answer is truthful because if you pointed to the bad door, you already won. If the answer is "yes", use the right door. If the answer is "no", use the left door.

    • @luigiboy72
      @luigiboy72 5 ปีที่แล้ว

      Um... pretty sure that the Ozo Ulu one is from Ted-Ed

  • @techgregory5253
    @techgregory5253 ปีที่แล้ว +1

    Mine solution was to ask "If it were a bad door would you answer yes right now?
    If its a good door then the answer will be "It depends" since the answer is random
    Otherwise if the answer yes or no then this door is bad and you should pick another

  • @christopherangel879
    @christopherangel879 3 ปีที่แล้ว

    I tried this answering system in a multiple simulation changing the doors around and I can't seem to get it right all the time. I know it's 2/3 to get it right but I can't seem to make your strategy to work all the time.

  • @JorgetePanete
    @JorgetePanete 6 ปีที่แล้ว +4

    Ok... haven't seen the video yet, i have a solution:
    Point Random Door;
    Ask "Banana?", if The Warden says either yes or no you'll know that it isn't the right door, if he says something like "What?" you know that door leads to freedom.

    • @Nikita-fp8uu
      @Nikita-fp8uu 6 ปีที่แล้ว

      lol that i really smart

    • @julianmoritz7312
      @julianmoritz7312 6 ปีที่แล้ว

      you can only ask yes or no questions. if you ask banana, you wasted your only question, which means now you have a 33.33% chance of eternal imprisonment

    • @weckar
      @weckar 5 ปีที่แล้ว

      @Ferret man, just because the question is a yes/no question does not mean those are the only answers the warden can give.

  • @chinmaikoul6419
    @chinmaikoul6419 7 ปีที่แล้ว +3

    I WOULD ASK - *IS THIS AIR U THINK U R BREATHING!?*

  • @conradthomson7043
    @conradthomson7043 2 ปีที่แล้ว +1

    Considering that the average warden does not routinely allow prisoners a 66.67% chance (or 100% chance if they're good logicians) of escaping prison, I'd say "evil" is slightly off-base.

  • @nastyle4807
    @nastyle4807 2 ปีที่แล้ว +1

    I would point to the left door and ask: Is the door directly next to it the door for the imprisonment?
    If he answers with yes, I'll pick the door at the right, because when he lies, the wrong door is the left one, when he tells the truth, it's the one in the middle so regardless if he tells the truth or not, the door on the right is the right answer. If he replies to my question with no, I'll pick the middle door, because if he sais the truth, it's the way to go and even if he lies and replies with no, I know that the middle door is save, because: he lies and the left door is the wrong one.
    So referring back to my question:
    If he sais yes, pick the door on the right, if he answers no, pick the one in the middle.

  • @chimaeria6887
    @chimaeria6887 6 ปีที่แล้ว +5

    You should ask: are the two door leading to freedom adjacent? If yes, pick the middle door. If no, pick one of the door on the right of left.

    • @chimaeria6887
      @chimaeria6887 6 ปีที่แล้ว

      *or left

    • @mr.parabola5051
      @mr.parabola5051 6 ปีที่แล้ว

      Which door do you point at?

    • @freddievermeulen5853
      @freddievermeulen5853 6 ปีที่แล้ว

      hahaha.. doesnt matter which door you point at... won't make any difference.. this is the best answer ever

    • @fl3xo10
      @fl3xo10 6 ปีที่แล้ว

      You realise that doesn't work right??? lol

    • @freddievermeulen5853
      @freddievermeulen5853 6 ปีที่แล้ว

      hehehe.. yes i know... just trying to confuse Mr parabola :P

  • @hpierre2294
    @hpierre2294 7 ปีที่แล้ว +16

    SIMILAR QUESTION :
    You are facing two doors after you Die. One leads to heaven the other one to Hell. In front of each door there is an angel and a demon placed randomly. You dont know who is the angel and who is the demon and you can only ask one question to know witch door leads to heaven. What is that question ?
    ====SOLUTION====
    Question : What would the guy in front of the other door says if I ask him wich door leads to heaven ?
    Explication :
    If you ask the angel that question he will answer you what the demon will say by lying. So you just have to pick the other door.
    If you ask the demon this question he should tell you what the angel should tell you by indicating you the real heaven's door. But he's a liar so he'll indicate you the hell's door. So you just have to pick the other door.

    • @hpierre2294
      @hpierre2294 7 ปีที่แล้ว

      I apologize for my bad english I come from France :x

    • @Mythologiga
      @Mythologiga 7 ปีที่แล้ว +1

      I think I have another valid answer :
      "If I asked you wether the other door leads to Hell, would you answer yes ?"
      If the other door is leading to hell (therefore we talk to angel) he answers yes. If the other door leads to heaven, and we talk to the demon, then he would answer yes to "Does the other door leads to Hell" (he lies), so he should answer yes to our question, but because he lies (again :D), he says no.
      Therefor if the answer is yes, we are talking to the angel and we pick this door, and if the answer is no we are talking to the demon and we have to pick the other door.

    • @SmileyMPV
      @SmileyMPV 7 ปีที่แล้ว +3

      This can be done way simpler.
      Just ask "Is 1 equal to 1?" and the angel would answer yes, while the demon would answer no.

    • @hpierre2294
      @hpierre2294 7 ปีที่แล้ว +1

      SmileyMPV Yes your right It would make more sens if the angel and demon are placed randomly in front of the doors I'll correct it

    • @tdiaz5555
      @tdiaz5555 7 ปีที่แล้ว

      so then you know which one is the angel and which one is the demon, but they are placed randomly, thus you still don't know which door to take.

  • @quaids8291
    @quaids8291 3 ปีที่แล้ว +1

    I got a different answer where you would point at any door, let's say A, and ask "Will I be imprisoned". Because the Warden does not yet know if you will be imprisoned, he will be lying if he says either yes or no. So if door A was freedom, then he would be unable to answer because you haven't chosen a door yet. It states in the riddle that he will randomly say yes or no (No Matter the Question). so if you chose the imprisonment door. So if he answers with either yes or no, you know that you pointed at the imprisonment door.

  • @TheDeafDood
    @TheDeafDood 5 หลายเดือนก่อน

    My guess: point to any door, and ask if one of the other doors you're not pointing to is the imprisonment door. For example I point to A, and ask if B is the imprisonment door. If he says yes, just go through door C; if he says no, go through door B. This works even if the door I point to is the imprisonment door because I just need to ensure the door I pick to go through is NOT the imprisonment door by not going through the door I point to and going through one of the other doors based on the warden's answer.
    Edit: Yep, got it right :) to be fair, I got the idea from a Ted-Ed riddle that has the three alien overlords if you guys know about that.

  • @pmdoublet1948
    @pmdoublet1948 6 ปีที่แล้ว +3

    Lies he says yes or no RANDOMLY

    • @kaisarsihaloho975
      @kaisarsihaloho975 3 ปีที่แล้ว +1

      Point to door b, ask about door a is safe..... says yes (but its randomly) so it means that B is the safe door because door a is death door, and because theres 2 freedom doors so just choose b, its still the same in the video
      Point to door a, says no (but its randomly) so it means that door a is deathly door so door c and b is also safe, but it says in the video go to door c, so its still safe.....
      What about the warden answers truthfully? Well, watch the video, its really hard to explain it and type it, so.... just check the video again and try to think again.....

  • @leoyang1.618
    @leoyang1.618 6 ปีที่แล้ว +6

    How do you know that door A doesn’t lead to freedom

    • @sinisternightcore3489
      @sinisternightcore3489 6 ปีที่แล้ว +3

      You can't know that, but it's irrelvant because you are not going to pick door A.
      These is no need to identify both doors that lead to freedom, just one of then.

    • @santiagopicco1397
      @santiagopicco1397 6 ปีที่แล้ว

      You cannot know for certain all the good and bad doors position. You reach that conclusion after some thinking, then the only possible way is to get information no matter which door is responding to your question, and you'll get info about only one door.

  • @armchairspaceman9134
    @armchairspaceman9134 2 ปีที่แล้ว +1

    OR- , put a friendly arm around Wardens shoulder.. casually wave three fingers of one hand at _all three_ doors, and ask - ''Let me buy you a beer, buddy?'' ;)

  • @SuperFerz
    @SuperFerz ปีที่แล้ว

    I figure almost similarly, but would ask instead "Is door B the same type with door A?" whereas "the same type" denotes "leads to freedom".