Answer:
This thing runs but cannot walk, sometimes sings but never talks. Lacks arms, has hands; lacks a head but has a face.
Autumn leaves and bad bowlers wreak havoc on this
A word I know, six letters it contains. Subtract just one and twelve remains.
You use a knife to slice my head. And weep beside me when I am dead.
What instrument can make any sound and be heart, but not touched or seen?
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.