Answer:
I am a box that holds keys without locks, yet they can unlock your soul.
It cannot be seen, cannot be felt, Cannot be heard, cannot be smelt. It lies behind stars and under hills And empty holes it fills. It comes first and follows after, Ends life, kills laughter.
Scythe of darkness, Shadow’s light. Guiding eye of thirteenth sight.
A precious stone, as clear as diamond. Seek it out whilst the sun's near the horizon. Though you can walk on water with its power, Try to keep it, and it'll vanish within an hour.
Ten men's strength, ten men's length. Ten men can't break it, yet a young boy walks off with it.
The more of me you take, the more I appear behind you. What am I?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?