Answer:
What can touch someone once and last them a life time?
A circle of stones, never in rows. Stacked one on the other, mystery it sows. What is it?
At first, I am nothing. Add something to negate. Add again to oppose. Add again to find the time to draw. Add once more to find nobody at all.
What has six faces and twenty-one eyes?
Who is he that runs without a leg. And his house on his back?
If you count 20 houses on your right going to the store and 20 houses on your left coming home, how many houses did you count?