Answer:
My first two letters say my name. My last letter asks a question. What I embrace I destroy.
I am the key that is the hardest to turn
My seas have no water, my mountains have no rock, and my land has no grass. What am I?
I move without wings Between silken string I leave as you find My substance behind.
What can you catch but not throw?
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.