Answer:
A hole in a pole. Though I fill a hole in white I'm used more by the day and less by the night
What is it that after you take away the whole some still remains?
I store fire-breathing animals.
I am a caribbean shape that makes ships disappear
Every dawn begins with me. At dusk I'll be the first you see and daybreak couldn't come without. What midday centers all about. Daises grow from me I'm told. And when I come I end all code but in the sun I won't be found. Yet still each day I'll be around.
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.