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 Twins (Posted on 2009-01-07)
Alex, Bert, Carl, and Dave are all brothers, with two of them being twins. At least one of them is a knight and makes all true statements. At least one of them is a liar and makes all false statements. And at least one of them is a knave and makes alternating true and false statements. The two which are the same type are the twins. From the statements below, determine who the twins are.

Alex:
1) Bert is one of the twins.
2) Carl is a liar.

Bert:
1) Carl is one of the twins.
2) Alex is a knight.

Carl:
1) I am not one of the twins.

 See The Solution Submitted by Brian Smith No Rating

 Subject Author Date Answer K Sengupta 2009-01-25 16:37:48 Answer by elimination rod hines 2009-01-07 19:25:40 Solution elementofsurprize 2009-01-07 18:27:38 Solution with explanation Gamer 2009-01-07 18:23:57 computer solution Charlie 2009-01-07 16:32:03 Solution Dej Mar 2009-01-07 15:46:50

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