Answer:
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.
It's got twists and turns, but has no curves. Twist it to fix it, turn it to ruin it. What is it?
I am a box that holds keys without locks, yet they can unlock your soul.
When set loose I fly away. Never so cursed as when I go astray.
Walk on the living, they don't even mumble. Walk on the dead, they mutter and grumble.
What language does a billboard speak?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?