Answer:
This is needed both for courage and hardcover books.
A certain wizard resided in a city made from this gemstone.
It's got twists and turns, but has no curves. Twist it to fix it, turn it to ruin it. What is it?
A house full, a yard full, a chimney full, no one can get a spoonful.
What type of paper can you neither read nor write on?
If lightning strikes an orchestra who is the one most likely to get hit?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?