Answer:
A circle of stones, never in rows. Stacked one on the other, mystery it sows. What is it?
I am what remains when nothing is left.What am I?
With head without hair. With mouth without tooth.
You eat something you neither plant nor plow. It is the son of water, but if water touches it, it dies.
I have a hundred legs, but cannot stand. I have a long neck, but no head. I cannot see. I'm neat and tidy as can be.
If it’s information you seek, come and see me. If it’s pairs of letters you need, I have consecutively three. What am I?