1 2 3 4
Thinking about it now, I would say that there is a difference between the answer to a question being 'false', and the question itself being false. But would it still be fair to answer 'false' in either case?

But if it were intended as a logical trick, you'd be equally within your rights to demand that the rules of logic be fully applied. I think there's a decent argument for saying that the question is an implication with a true conclusion - which again would make the overall question true (an implication is only false, in logical terms, if the premise is true but the conclusion is false).

Cheers - Ian