Answer:
What is weightless but it needs two person to hold it?
Long and slinky like a trout, never sings till it's guts come out.
It holds most knowledge that has ever been said. But is not the brain, is not the head. To feathers and their masters, it's both bane and boonΒ One empty, and one full.
What has two hands, a round face, always runs, but stays in place?
I am the greatest teacher out of them all, but alas in the end I kill my pupils.
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.