Answer:
What has a neck and no head, two arms but no hands?
Often wandering the streets, this group of people cannot afford to be choosers.
It's tough as nails, Or soft as snow. People use it for their rink, Some just put in their drink.
It is in every mountain, it's not in any hill, it's not in all the world, and yet it's in the mill.
Small, containing light, You'll need it in the dark, It will provide that spark, and shine into the night. Will light up any pyre, 'Cause it can help make a fire.
Often cooked as fillet, this meat comes from an animal that swims underwater.