Answer:
I can be quick and then I'm deadly, I am a rock, shell and bone medley. If I was made into a man, I'd make people dream, I gather in my millions By ocean, sea and stream.
As soft as silk, as white as milk, as bitter as gall, a thick green wall, and a green coat covers me all.
What flies forever, Rests never?
Looks like water, but it's heat. Sits on sand, lays on concrete. A play on the eyes, but it's all lies.
Dies half its life. Lives the rest. Dances without music. Breathes without breath.
What never asks questions but receives a lot of answers?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?