Answer:
It goes up and down the stairs without moving.
There is a clerk at the butcher shop, he is five feet ten inches tall, and he wears size 13 sneakers. What does he weigh?
A father's child, a mother's child, yet no one's son
I'm a small ring shaped fried cake, often with bavarian cream or fruit filling, and sometimes covered in icing and sprinkles.
What can be seen but not touched?
What is always coming but never arrives?