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Escaping the dungeon (Posted on 2002-04-26) Difficulty: 2 of 5
You are trapped in a dungeon, and see two doors in front of you. One is a way out, andther will lead to certain death.

Two people are standing in front of these doors, one of them a Knight, another - a Liar. Naturally, you do not know who is who, but they know each other's true nature.

Both the people know which way is correct, but you can only ask one question of one of them before making your choice. What will you ask?

  Submitted by levik    
Rating: 3.0000 (18 votes)
Solution: (Hide)
Ask: "Which door will the other person tell me to use?"

No matter who the person you ask is, they will point to the door leading to death.

Take the other one.

Comments: ( You must be logged in to post comments.)
  Subject Author Date
SolutionPraneeth2007-08-29 02:40:36
Some Thoughtsre(2): Puzzle SolutionK Sengupta2007-05-21 11:32:01
Some Thoughtsre: Puzzle SolutionJayDeeKay2007-05-16 13:21:23
SolutionPuzzle SolutionK Sengupta2007-04-17 11:11:07
SolutionNo SubjectK Sengupta2007-04-17 11:07:33
SolutionDifferent questionCharleyA.2007-04-10 15:24:39
SolutionOld onePaddy2005-12-23 04:23:18
re: LabyrinthBrandon2005-05-16 14:05:17
SolutionWay way to easyron2004-12-31 17:13:47
Some ThoughtsI have heard this...logischer Verstand2004-05-04 17:22:49
An Alternative Dungeon Problem SolutionGordon Steel2003-08-28 15:11:42
Solutionperhaps...Lewis2003-05-04 20:46:37
SolutionIf and only if Door ATim Axoy2003-03-19 07:16:07
re: I will ask...toekie2003-01-16 08:00:38
I will ask...rhea2002-12-28 18:53:18
Labyrinthcges2002-12-05 08:41:27
re: I got it...Kristina2002-09-03 09:51:40
the answerKristina2002-09-03 09:49:56
Me too.Carey2002-05-31 02:40:19
I got it...John2002-05-01 05:31:48
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