Answer:
What is the freedom of birds and the pen of old men?
My teeth are sharp, my back is straight, to cut things up it is my fate.
What can you catch but not throw?
When I live I cry, If you don't kill me I'll die.
Used on a diamond and left on a board. It's great for a gymnast his grip to restore. What is it?
Iām grown from darkness but shine with a pale light. Very round I am and always a lady's delight.