And another one - what's my name backwards?
Did you find that you could answer the first question rather quicker than the second? I have a theory that most people will have at some point worked out what their own name is backwards, and can therefore answer almost instantly if asked about it, but it takes longer to work out other people's names in reverse.
Might this have some application in determining whether people are telling the truth about their identity? Obviously not foolproof, but could be a useful indicator. I wonder if anyone has ever done any research along these lines?