Answer:
I cannot be felt, seen or touched. Yet I can be found in everybody. My existence is always in debate. Yet I have my own style of music.
Who makes it, has no need of it. Who buys it, has no use for it. Who uses it can neither see nor feel it. What is it?
What binds two people yet touches only one?
We are all around, yet to us you are half blind. Sunlight makes us invisible, and difficult to find.
I go around in circles, but always straight ahead. Never complain, no matter where I am led.
What covers its face with its hands, speaks no language, yet most known what it's saying?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?