Answer:
I am a box that holds keys without locks, yet they can unlock your soul.
This is needed both for courage and hardcover books.
What has thirteen hearts But no body or soul?
Whoever makes it, tells it not. Whoever takes it, knows it not. Whoever knows it, wants it not. What is it?
A house with two occupants, sometimes one, rarely three. Break the walls, eat the boarders, then throw away me.
What language does a billboard speak?
Difficult
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?