Answer:
They can be long or short; they can be grown or bought; they can be painted or left bare; they can be round or square.
A father's child, a mother's child, yet no one's son
I'm a god. I'm a planet. I measure heat.
Ancient and majestic, great big piles of stones, Used to encase both riches and bones. Seen from certain angles, They look like big triangles.
Tomorrow's yesterday. Yesterday's tomorrow. What is it?
Cycle Cycle Cycle.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?