Answer:
I am a box that holds keys without locks, yet they can unlock your soul.
I pass before the sun, but make no shadow.
There are several different kinds, but the one you pick doesn't do its job. What is it?
What instrument can make any sound and be heart, but not touched or seen?
What turns everything around but does not move?
When is it bad luck to see a black cat?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?