Answer:
Jack and Jill when up the hill jack fell down
What goes through the door without pinching itself? What sits on the stove without burning itself? What sits on the table and is not ashamed?
He has one and a person has two. A citizen has three. And a human being has four. A personality has five. And an inhabitant of earth has six.
What word is a plural, but when you add an "S" to the end, it becomes singular?
What has two hands, a round face, always runs, but stays in place?
You use it between your head and your toes, the more it works the thinner it grows.