3. Ask him to describe the beginning of the universe and humans.

This again presupposes that the questioner understands the true origin and sequence of events involved. It begs the question: "Who is their authority in providing their knowledge?" Presumably it is not what you personally think, but what he thinks to be the truth, and so would be the arbiter, the judge and jury here, to see if your version matches his. This is always a dangerous exercise because human knowledge is always incomplete and often faulty, and with the lack of reliability of most sources available to human beings, almost any kind of definitive information they may be seeking will have aspects that are distortions. So it is a much more complex undertaking than he envisions and again is something that a clever imposter could satisfy through obtaining a telepathic awareness of the beliefs being held by the questioner, for example, and simply feeding them what they wish to hear.