Well, certain religious theologians had debated that question for several hundred years. After much study, the basic conclusion was that it was a silly question not worth an answer.
I'm not sure I ever met an uneducated "good" protestant. Everyone I ever met was well read and had a firm understanding of the bible from both scripture and various other theologians. A lot of the more conservative denominations have bible study where most members go regularly. There are not a lot of christians who activley study the bible and try to understand it. So it is silly and a waste of time to ask theological questions to someone who claims they are a christian but lacks the understanding behind it.
Oh yes, versed in the Bible, but not really in cognitive deductions, so they wouldn't readily combat the comment and certainly not successfully, a nonspoken "throwing in the towel" of sorts, at least to the extent that the skeptic would be satisfied.
Also, when people ask those questions, most of the time, they don't care if the person understands the question or that they know enough of the Bible to answer it well, they just want to disprove the Christian. I don't know whether its because they really care whether God exists or not or if they just want to satiate their ego.