Answer:
I'm white and used for cutting and grinding. When I'm damaged, humans usually remove or fill me. For most animals I am a useful tool. What am I?
I save lives on the ground and in the air. What am I?
I do not contain flesh feather or scales; yet I have fingers and thumbs.
A man who was outside in the rain without an umbrella or hat didn't get a single hair on his head wet. Why?
I'm blue, but when you see me I'm red. You don't see me too often. I'm there for you if you're hurt, but I'm good for you. What am I?
I'm the source of all emotion but I'm caged in a white prison.