What am I riddles

cleanshortwhat am I

Shut up in a wooden case

I am taken from a mine, and shut up in a wooden case from which I’m never released, and yet I am used by many. What am I?
Pencil lead.
86.20 %
51 votes

shortwhat am I

I can eat anything

If I drink something, then I am just over. However, I can eat anything. What Am I?
A fire.
86.91 %
43 votes