Answer:
No legs have I to dance, no lungs have I to breathe. No life have I to live or die, and yet I do all three. What am I?
A piece of paper that takes most people 3 or 4 years to get.
I can be entertaining until you realize some pieces have been lost.
I am as hard as metal, yet as flimsy as glass. I shine like a star, yet I am only a rock. What am I?
You find me behind the stars; or in a sixth seventh or third. It takes something round a computer and me to make pie. I am bigger than anything you can think of.
It weighs next to nothing but no one can hold it for long. What is it?