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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)

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0 questions (but you wont know for sure) | Comment 20 of 23 |
adam said that "Bert said that carl isn't a knight". the fact part may be that adam said it but bert is lying that about carl thus Carl is a knight bert is the liar and that leaves adam the knave but you cant be 100% sure about this way

  Posted by Sage on 2006-02-02 18:33:52
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