>I am reminded of an old circular favourite:
>
>"God is omnipotent.
>Therefore there is nothing he cannot do.
>Therefore he cannot set himself a question he cannot answer.
>Therefore he is not omnipotent."

Yes, this one is interesting. One of the versions I had heard - a shorter version - is: "If God is omnipotent, can he pose a problem He Himself can't solve?"

If I remember correctly, you are a believer (in God); anyway, for us believers, this is somewhat troubling. Does this sort of reasoning prove that omnipotence is impossible? I don't think so; it turns out that with many of the logical antinomies, it is quite complicated to figure out what the real problem with them is. Perhaps this is a similar case.

Perhaps, also, in defining the scope of omnipotence ("everything is possible"), the scope is simply too broad, and must be further specified; much like the scope in the "set of all sets", in mathematical set theory, is too broad (and promptly causes contradictions).