Answer:
I'm white and I'm used for cutting and grinding. When I'm damaged people usually remove me. What am I?
I have 24 keys but cannot open any locks. Sometimes loud, sometimes soft. What am I?
What do people spend a lot of money on every year, but never want to use?
I walk on 4 legs in the morning, 2 legs at noon, and 3 legs at night. What am I?
I am commonly abbreviated to H
What made Cyclops quit teaching?