Answer:
I am carried by mad animals.
Taken from a mine and then locked up in a wooden case. I am used by students everyday.
I march before armies, a thousand salute me. My fall can bring victory, but no one would shoot me. What am I?
What can fill a room but takes up no space?
The dirtier I get, the whiter I am. What am I?
What did the piece of wood say when he saw the screwdriver and screws approaching?