Answer:
My voice is tender, my waist is slender and I'm often invited to play. Yet wherever I go, I must take my bow or else I have nothing to say. What am I?
I am the best thing that can happen after a stick hits a ball.
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.
If I have it I don't share it. If I share it I don't have it. What is it?
I have to be broken before I can be used
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.