Answer:
What has 4 fingers and a thumb but is not living?
I hide but my head is outside. What am I?
I am a rock group that has 4 members, all of whom are dead, one of which was assassinated. What am I?
They are many and one, they wave and they drum, used to cover a stare, they go with you everywhere.
Always in you, sometimes on you. If I surround you, I can kill you. What am I?
I am your mother's brother's only brother in law. Who am I?