Answer:
What is red and nailed to a wall?
Something wholly unreal, yet seems real to I. Think my friend, tell me where does it lie?
Black we are and much admired. Many seek us if they are tired. We tire the horse, and comfort man, and turn White when we've fulfilled your plan.
The ones who see it may go blind, Contracting the fool's madness. You have to dig to find it, Crush big stones or mine it. Wash dirt clumps in a pan and wait for it to settle, A shiny, precious metal.
You can spin, wheel and twist. But this thing can turn without moving.
Iām grown from darkness but shine with a pale light. Very round I am and always a lady's delight.