3.2 - though it seems to me that the test is more about empathy and compassion than common sense. I know enough to come in out of the rain, I just don't care if you do.
4.1 here. But what we really need are statistical numbers showing their results on a bell curve, so we can turn these 1-5 numbers (that feels so low!) into our cherished d20 3-18's.
Ah, I get it. It's a trick, see? Only the person who understands he has no wisdom is truly wise. So, really, the lower the score, the more wise you are