Answer:
There is a puzzle which can be asked all day with a different correct answer each time. What is the puzzle?
You can hold it without using your hands or your arms. What is it?
I have rivers without water. Forests without trees. Mountains without rocks. Towns without houses.
This is needed both for courage and hardcover books.
What doesn't get any wetter, no matter how much rain falls on it?
Why is the letter B always cool?