Answer:
You throw away the outside, eat the inside, then throw away the inside. What is it?
What is full of holes, but can still hold a lot of water?
The higher I climb, the hotter I engage. I cannot escape from my crystal cage.
What is the thing that stays the same size, but the more it's used the more it decreases?
It is the great nemesis of the lactose intolerant.
When is it bad luck to see a black cat?