Answer:
What surrounds the world, yet dwells within a thimble?
A man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?
Take off my skin, I won't cry, but you will.
What word starts with 'E', ends with 'E', but only has one letter? It is not the letter 'E'.
When it comes in, From sea to shore, Twenty paces you'll see, No less, no more.
You use it between your head and your toes, the more it works the thinner it grows.