Answer:
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.
What can answer in any language? What can speak without a mouth? What can sing without an ear?
Plant whose name sounds like a dish full of dairy spread.
You can read it both ways, I wear; One way it's a number, reversed a snare.
Round as a button, deep as a well. If you want me to talk, you must first pull my tail.
What do angels sing in the shower?