“If the world is round, why does it feel flat?”
“If God made everything, who made God?”
“What is gravity? What makes gravity?”
“Why are rats disgusting? If there was a whole house of rats, but no people in the house, would they still be disgusting?”
“How do workers [at the water treatment plant] separate pee out of water?”
Why is it that deep thoughts seem to bubble out of a wee one’s mouth most often when he’s riding in the car?