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Home > Logic > Liars and Knights
Only One Question (Posted on 2005-02-16) Difficulty: 3 of 5
The following two facts are known about Adam, Bert, and Carl:

1) Of Adam, Bert, and Carl, there is one knight, one knave, and one liar.
2) Adam said once, "Bert said that Carl isn't a knight."

Can you ask one yes/no question to one person and figure out who is who? If not, how many questions must you ask?

See The Solution Submitted by Dustin    
Rating: 4.0000 (8 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Answer | Comment 22 of 23 |
At least three questions must be asked.
  Posted by K Sengupta on 2008-11-15 06:49:22
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