Answer:
Taken from a mine and then locked up in a wooden case. I am used by students everyday.
I ask no questions but receive a lot of answers. What am I?
You do not want me when you donโt have me, but when you have me you donโt want to lose me. What am I?
I have a few points but we're not competing. I'll help you win when you're eating. What am I?
I am gentle enough to soothe your skin, light enough to fly in the sky, strong enough to crack rocks. What am I?
What do people want the least on their hands?