I'd ask him questions about my observations of the Bible and see how long it takes for him to smite me. Here's my list (depends how generous he's feeling with the Q&As)
1) If there were only 1 man and 1 woman in Eden, are we descended from inbreds or people who had sex with animals?
2) If you sacrificed your only child and made such a big deal out of it, why didn't you just make another son?
3) Why did you turn that chick to salt for looking at you? Did you forget to fix your hair that morning?
4) Do the non stop requests from Christians ever start annoying you? If I were you, I'd want them to shut up after a while.
5) Hitler. What the fuck were you thinking?