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Subject: The Riddle of the Doors
Someone, let's name him Janon, was taken to the dungeon and presented with two doors, each protected by a single guard. One door led to freedom and the other door to a hungry lion. Janon was allowed to ask one question of one guard of his choice. The question was limited to a yes/no answer. Janon knew that this was a tricky pair of guards:
One would always lie and the other would always tell the truth. The guards knew behind which door lay freedom and which door led to the lion, and knew who was the liar and who was the truth sayer. But how was Janon to know the difference?
Janon devised a fool-proof question and went happily on his way.
What do you think was the question he asked?
Subject: Re: The Riddle of the Doors
I thought the riddle of the Doors was why they're still trying to tour without Morrison.
Subject: Re: The Riddle of the Doors
Jannon should ask any guard, "Would the other guard tell me it is safe to go through this door?" At least I think that would be the right question, but I don't believe it worked out right in Labyrinth.
Subject: Re: The Riddle of the Doors
Quoting:
I thought the riddle of the Doors was why they're still trying to tour without Morrison.
End Quote
And with Ian Astburry even? C'mon!
Sorry Hair, I tried but can't come up with it. :P
Subject: Re: The Riddle of the Doors
Quoting:
Jannon should ask any guard, "Would the other guard tell me it is safe to go through this door?" At least I think that would be the right question, but I don't believe it worked out right in Labyrinth.
End Quote
What if he lies to Janon by saying "yes" or "no"?
I was thinking more along the lines of asking either of the guards if they were actually a guard. The liar would respond, "no," but that doesn't say much about what is behind the door :P
Subject: Re: The Riddle of the Doors
Quoting:
Jannon should ask any guard, "Would the other guard tell me it is safe to go through this door?" At least I think that would be the right question, but I don't believe it worked out right in Labyrinth.
End Quote
That would tell Janon which door was safe, so he's good, but it doesn't tell you which guard is telling the truth, because both guards would answer the question the same way.
Subject: Re: The Riddle of the Doors
I've heard this before, but I can't remember the answer!
Subject: Re: The Riddle of the Doors
Of course! I remember now! Janon just needs to ask one of the guards "Which door would the other guard say was safe?" and then do exactly the opposite! The liar would say "the door on the right", knowing that's the wrong door, and the truth-sayer would say "the door on the right", knowing the liar would also say that. They both give the same answer, so Janon would know to do exactly the opposite!
:D
Subject: Re: The Riddle of the Doors
But of course if the guard's answer was limited to either "yes" or "no", the question would have to be "Would the other guard say this door was safe?" And it was used in Labyrinth, but she got confused and messed it up.
Subject: Re: The Riddle of the Doors
Quoting:
I thought the riddle of the Doors was why they're still trying to tour without Morrison.
End Quote
dont forget theyre screwing over Ritchie Densmoore too
Subject: Re: The Riddle of the Doors
Quoting:
Jannon should ask any guard, "Would the other guard tell me it is safe to go through this door?" At least I think that would be the right question, but I don't believe it worked out right in Labyrinth.
End Quote
This is the correct question to ask, but it is important to remember to do the exact opposite of what answer you are given.
Example: the left hand door leads to the lion, and the right hand one is safety. The guard on the left is a liar, and the one on the right is the truth-teller.
Ask the guard on the left: "Would the other guard tell me it is safe to go through this door?" The truth-teller on the right would correctly answer "no", but you are asking the guard on the left, who lies...so he says "yes".
Knowing that, you go out the right hand door to safety.
Had you asked the right-hand guard, the correct answer would be yes...but knowing the left hand guard will lie, the truth-teller will truthfully tell you that the other guard will say "no".
Subject: Re: The Riddle of the Doors
Quoting:
This is the correct question to ask, but it is important to remember to do the exact opposite of what answer you are given.
Example: the left hand door leads to the lion, and the right hand one is safety. The guard on the left is a liar, and the one on the right is the truth-teller.
Ask the guard on the left: "Would the other guard tell me it is safe to go through this door?" The truth-teller on the right would correctly answer "no", but you are asking the guard on the left, who lies...so he says "yes".
Knowing that, you go out the right hand door to safety.
Had you asked the right-hand guard, the correct answer would be yes...but knowing the left hand guard will lie, the truth-teller will truthfully tell you that the other guard will say "no".
End Quote
Sorry, lady. I know I've had way too many tokes now and again, but not as many to not be able to make sense of what you wrote. That is about the weirdest scenario I've ever read. I bet Juano would be eaten up by a lion no matter what. You know how ruthless and petty those kings are.
Subject: Re: The Riddle of the Doors
Let's say that the liar is in front of the wrong door.
Pick either guard and ask him " What will the other guard say is the correct door to pass through?". If you happened to ask the liar he will respond "The other guard will say that my door is the correct door". If you happened to ask the honest guard he will respond "The other guard will tell you that his door is the correct door". Either way, you know to take the opposite door.
I think. ???
Subject: Re: The Riddle of the Doors
Quoting:
Let's say that the liar is in front of the wrong door.
Pick either guard and ask him " What will the other guard say is the correct door to pass through?". If you happened to ask the liar he will respond "The other guard will say that my door is the correct door". If you happened to ask the honest guard he will respond "The other guard will tell you that his door is the correct door". Either way, you know to take the opposite door.
I think. ???
End Quote
That's not a "yes or no" answer.
Subject: Re: The Riddle of the Doors
Quoting:
That's not a "yes or no" answer.
End Quote
My bad. I didn't read the riddle completely. I've heard it told in another way. But if you look at XenaKat's response you'll find your answer.
Subject: Re: The Riddle of the Doors
Just an addendum: never ask the guard whether it's the "Correct" door through which to pass: you won't know whether "correct" means getting out or getting eaten...
Phil
Subject: Re: The Riddle of the Doors
Answer to the Riddle of the Doors
The question was:
Will the other guard say YOU have the door to freedom?
And if the guard answered yes, Janon knew he was at the door to the lion and if the guard replied no, he knew he was standing in front of freedom.
Liar
Door to the Lion - Yes
Door to Freedom - No
Truth - Teller
Door to the Lion - Yes
Door to Freedom - No
Explanation:
If you asked the Liar -
The Liar will tell a lie about the other guard's response upon the asking of the question because he lies.
If you asked the Truth-Teller -
The Truth-Teller will tell the truth about the other guard's response upon the asking of the question because he tells the truth, knowing the other door is a Liar. Get it?
The Truth-Teller knows the Liar will lie. ;)
Ok, here it is in more detail:
If you look at the four possibilities, you will see that you should always go with the guard who answers, No.
Possibility 1 – You are in front of the door to freedom and the truth teller.
Question: “Will the other guard say YOU have the door to freedom?”
Answer: No
Reason: The other guard will have to lie and say that you do not have the door to freedom.
Possibility 2 – You are in front of the door to death and the truth teller.
Question: “Will the other guard say YOU have the door to freedom?”
Answer: Yes
Reason: The other guard will have to lie and say that you have the door to freedom.
Possibility 3 – You are in front of the door to freedom and the liar.
Question: “Will the other guard say YOU have the door to freedom?”
Answer: No
Reason: The other guard will have to tell the truth and say that you have the door to freedom.
Possibility 4 – You are in front of the door to death and the liar.
Question: “Will the other guard say YOU have the door to freedom?”
Answer: Yes
Reason: The other guard will have to tell the truth and say that you do not have the door to freedom.
Subject: Re: The Riddle of the Doors
Thank you all for participating in this thread. :)