Answer:
There is one in a minute two in a moment and none in a thousand years. What is it?
What's orange and sounds like a parrot?
What gets bigger when more is taken away?
I am rubber you can eat!
Taken from a mine and then locked up in a wooden case. I am used by students everyday.
Black we are and much admired. Many seek us if they are tired. We tire the horse, and comfort man, and turn White when we've fulfilled your plan.