Answer:
My life can be measured in hours, I serve by being devoured. Thin, I am quick. Fat, I am slow. Wind is my foe.
I scribble forms of the finest letter, And repel elements of the harshest weather. I am an arrow-aimer and a dust-breaker.
What bird can lift the heaviest weight?
Voiceless it cries, wingless flutters, toothless bites, mouthless mutters.
A serpent swam in a silver urn, A golden bird did in its mouth abide, The serpent drank the water, this in turn, Killed the serpent. Then the gold bird died.
I’m grown from darkness but shine with a pale light. Very round I am and always a lady's delight.