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Saw this and I'm not even sure this is a valid question. It seems that A is a lie is true. But I can't wrap my head around the case in which B is a lie. So here it goes:

Two truths and a lie: Which is a lie?
A. This statement
B. Not this statement
C. One of the other statements

Ruochan Liu
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    I have been informed on more than one occasion that Mathematics.SE no longer accepts questions that are puzzles. The advice usually given is to post puzzles on other websites. – M. Wind Aug 05 '22 at 04:13

1 Answers1

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Self-referential statements are tricky: there is no guarantee that any consistent truth values can be assigned. In particular, statement A says that statement A ("This statement") is a lie. That can never be assigned a consistent truth value (this is exactly the Liar's paradox)

Robert Israel
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