Answer:
There is 10 birds on a branch, a man shot 5 of them. How many were left?
I cannot be felt, seen or touched; Yet I can be found in everybody; My existence is always in debate; Yet there is a style of music named after me.
What is so delicate that saying its name breaks it?
They can be long or short; they can be grown or bought; they can be painted or left bare; they can be round or square.
I occur twice in eternity. And I'm always within sight.
I met a man and drew his name. He tipped his hat and played my game. What is his name?