Answer:
What makes a loud noise when changing its jacket, becomes larger but weighs less?
I'm white, I'm round, but not always around. Sometimes you see me, sometimes you don't.
It regulates our daily movements, but it feels no interest in our lives. It directs us when to come and go, but does not care if we pay attention. What is it?
What flies without wings?
There are two meanings to me. With one I may need to be broken, with the other I hold on. My favorite characteristic is my charming dimple.
If lightning strikes an orchestra who is the one most likely to get hit?