What can you catch but never throw?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

Living above a star, I do not burn
Eleven friends and they do not turn
I can just be visited in a sequence, not once or repeatedly
PQRS are my initials
Can you tell my name accurately?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

Jack and Joseph are well-known golf rivals. One Day during a match, they were level at a score of 30. Jack hit a bad shot and Joseph added 10 to his score. Joseph then hit an awesome shot and he won the game.

How ?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

I have teeth but i don't bite. Who Am I ?

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?