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Home > Logic > Liars and Knights
Who's Younger? (Posted on 2008-04-01) Difficulty: 3 of 5
Abby, Brenda, Carol, Diane and Emily are all of different ages. Two are liars and three are knights (knights always tell the truth; liars always lie).

Brenda claimed to be younger than Emily.
Carol claimed to be younger than Abby.
Carol claimed to be younger than Brenda.
Carol claimed to be younger than Diane.
Carol claimed to be younger than Emily.
Diane claimed to be younger than Brenda.
Diane claimed to be younger than Carol.
Diane claimed to be younger than Emily.
Emily claimed to be younger than Abby.
Emily claimed to be younger than Diane.

There were two other, similar, statements made, besides the ones metioned above, and in fact those were the only other statements like that that could be made.

That might be a little ambiguous, but resolving this ambiguity is part of the fun, and you can do it.

Who were the two liars and what was the order of their ages?

You can even fill in the two unheard remarks:

_______ claimed to be younger than _______
_______ claimed to be younger than _______

See The Solution Submitted by Charlie    
Rating: 3.0000 (2 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re(2): Puzzle Answer Comment 10 of 10 |
(In reply to re: Puzzle Answer by K Sengupta)

Emily claimed to be younger than Brenda.

Brenda claimed to be younger than Carol.

Edited on December 25, 2023, 10:00 pm
  Posted by K Sengupta on 2023-12-25 21:59:52

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