Answer:
You use it between your head and your toes, the more it works the thinner it grows.
What is it which builds things up? Lays mountains low? Dries up lakes, and makes things grow? Cares not a whim about your passing? And is like few other things, because it is everlasting?
I usually wear a yellow coat. I usually have a dark head. I make marks wherever I go.
A tiny bead, like fragile glass, strung along a cord of grass.
What word has kst in the middle, in the beginning, and at the end?
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?