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Home > Logic > Liars and Knights
Knaves! (Posted on 2012-05-21) Difficulty: 2 of 5
You meet three people, A, B, and C. One is a knight, one is a liar, and one is a knave.

A:I am a knave.
B:A is a knave.
C:I am not a knave.

Who is a knight, who is a liar, and who is a knave?

  Submitted by Math Man    
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Solution: (Hide)
A is obviously not a knight. Suppose A is a knave. Then, B is telling the truth, so B is a knight. That means that C is the liar. However, a liar cannot tell the truth and say that they are not a knave. Therefore, A is a liar. B is lying, so B is a knave. Finally, C is a knight.


Comments: ( You must be logged in to post comments.)
  Subject Author Date
SolutionSolutionhoodat2012-05-28 05:32:01
SolutionsolutionCharlie2012-05-21 17:56:47
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