Answer:
What surrounds the world, yet dwells within a thimble?
I am the yellow hem of the sea's blue skirt.
What is the only letter in the alphabet that does not appear anywhere on the periodic table of elements?
I never was, am always to be. No one ever saw me, nor ever will. And yet I am the confidence of all, To live and breath on this terrestrial ball.
Not born, but from a Mother's body drawn. I hang until half of me is gone. I sleep in a cave until I grow old. Then valued for my hardened gold.
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.