Answer:
Iron roof, glass walls, I burn and burn but never fall. What am I?
I am an English word that is as long as I am valued. What am I?
I love to twist and dance. Though wingless I fly high up into the sky.
It's in your hand though you can not feel it. Only you and time can reveal it.
With three eyes and as black as night I frequently knock down ten men with a single strike!
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.