Recent questions from the Girl:
Who was the first person in the world?
How do you die? (Followed by "How long does it take?")
What is the last number?
And, while watching "Snoopy's Reunion," during which Snoopy and his litter mates are playing in a bluegrass jug band: "How do they know how to stand up?" (Taking for granted, I suppose, that they can play musical instruments.)