Answer:
What goes up the hill and down the hill, And spite of all, yet stand still?
On which day of the year do fewest people die?
Is an older one-hundred dollar bill worth more than a newer one?
On Christmas eve, when Santa leaves his workshop on the north pole, what direction does he travel.
A boy throws a baseball. It travels 40 feet and then goes right back to the boy. How is that possible?
What flies without wings?