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Home > Logic > Liars and Knights
Unknown answers (Posted on 2003-05-13) Difficulty: 3 of 5
Timothy once visited a land of knights and liars,and met two inhabitants,A and B. He had the following conversation.

Timothy:A,is B a liar?
Timothy hears A's answer,but he will not tell you what it was.
Timothy:B,are you both liars?
Timothy hears B's answer,but he will not tell you what it was.
At this point,I will not tell you whether or not he knew what they were.

He once told his friend what questions he asked,but not what answers he got. The friend did not have enough information,so the following dialogue occurred.

Friend:Were your answers the same?
Timothy's friend hears his answer,and finally the friend has enough information to solve what A and B are.
What are they?

See The Solution Submitted by Tim Axoy    
Rating: 4.0000 (7 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
SolutionAnswerMath Man2012-05-09 17:02:55
SolutionNice PuzzleK Sengupta2007-03-04 04:30:53
SolutionsolutionFatBoy2003-08-13 11:04:20
re(2): SolutionHank2003-05-14 03:35:13
Charlie did it!!Tim Axoy2003-05-13 13:11:07
Both wrong answersTim Axoy2003-05-13 13:08:18
SolutionLiar's Knight at the Knight's LairSanjay2003-05-13 12:27:45
Liars have to be True to themselvesSanjay2003-05-13 11:56:07
re: SolutionSanjay2003-05-13 11:33:36
re: SolutionCharlie2003-05-13 04:30:43
SolutionsolutionCharlie2003-05-13 04:21:29
SolutionSolutionRavi Raja2003-05-13 04:19:26
SolutionSolutionHank2003-05-13 03:08:27
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