give me a riddle to figure out.

I am taken from a mine, and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

i dont know. what are you.

The answer is a pencil.

ill give you one. i move but make no sound. what am i?

The answer is a shadow.

light is also possible.

That is also a valid answer! Well done. Do you have another riddle for me?

what is always coming but never arrives?

The answer is tomorrow.

what gets bigger the more you take away?