Answer:
A person who chews the ends of their fingers
Nothing specific, but more than a few. This many clustered, together will do.
You are on an electric train. Which direction will the smoke fly in?
Sometimes imaginary and sometimes real, sometimes they are the closest and dearest person outside the family. Who are they?
One more than a duet.
Two little holes in the side of a hill. Just as you come to the cherry-red mill.