Answer:
Brothers and sisters I have none but this man's father is my father's son. Who is the man?
I occur twice in eternity. And I'm always within sight.
I start in little but I end in full, you'll find me in half and complete.
What goes up and down the stairs without moving?
What has one head, one foot, and four legs?
Two little holes in the side of a hill. Just as you come to the cherry-red mill.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?