Answer:
For our ambrosia we were blessed, By Jupiter, with a sting of death. Though our might, to some is jest, We have quelled the dragon's breath. Who are we?
What goes zub zub zub
It can be white or blue or black, Humped or have a horn. And when it talks it sings its menuets, as it's travelling the depths.
Who spends the day at the window, goes to the table for meals and hides at night?
They swim around in schools or pods and they are related to whales
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.