Answer:
Sometimes I fly as fast as the speed of light. Sometime I crawl as slow as a snail. Unknown until I am measured but you will certainly miss me when Iām gone.
I saw the dead bring forth the living. I saw the living bring forth the dead. What did I see?
With three eyes and as black as night I frequently knock down ten men with a single strike!
So simple, that I can only point. Yet I guide men all over the world.
The more you take away from it the larger it becomes. What is it?
What grows bigger the more you contract it?