Answer:
I have green hair a round red head and a long thin white beard.
Taken from a mine and then locked up in a wooden case. I am used by students everyday.
What goes all around the world but never leaves its corner?
What force and strength cannot get through, I with my unique teeth can do. What am I?
Can not be bought, Can not be sold, Even if it's made of gold. What is it?
Whatโs a carpetโs favorite sport?