Answer:
I work when I play and play when I work.
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.
What contains zero calories, but if you consume it, you will probably gain weight?
What common English verb becomes its own past tense by rearranging its letters?
A leathery snake, with a stinging bite. I'll stay coiled up, unless I must fight.