Answer:
The more you look at me The less you see.
I get thrown in the air and will fall down. I get thrown down and I will rise in the air. What am I?
While you were folding a letter you got me. Usually you will do whatever it takes to avoid me but now you can't help but find me.
Bright as diamonds, loud as thunder, never still, a thing of wonder. What am I?
I am black and white. I have strings I have keys. I make sound without my lips. I make dough with no flour
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.