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Liar or not? (Posted on 2002-11-12)

A man walks up to you and says:
"Everything I say to you is a lie."

Is he telling you the truth or is he lying?

See The Solution Submitted by Raveen

Rating: 2.7059 (17 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

Not a paradox

| Comment 8 of 38 |

In logic, the negation of "Everything" is NOT "Nothing", it's actually "Some things".

So the opposite of the man's statement is "Some things I tell you is a lie."

Thus, he was lying when he made the original statement.

Posted by Happy on 2002-11-13 11:27:52

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