Answer:
Five hundred begins it, five hundred ends it. Five in the middle is seen. First of all figures, the first of all letters. Take up their stations between. Join all together, and then you will bring before you the name of an eminent king.
What liquid can contain the soul?
What is it that given one, you’ll have either two or none?
I am the yellow hem of the sea's blue skirt.
Hard to catch, easy to hold. Can't be seen, unless it's cold
I’m grown from darkness but shine with a pale light. Very round I am and always a lady's delight.