Answer:
I am tomorrow's yesterday and yesterday's tomorrow. What am I?
The more you take the more you leave behind. What am I?
I am used to bat with, yet I never get a hit. I am near a ball, yet never thrown. What am I?
I can generate fear and some say I come out of your ears. I am as quiet as a mouse but not welcomed in the house.
Never ahead, ever behind, yet flying swiftly past, for a child, I last forever, for adults, I'm gone too fast.
I flow from the Homerβs mouth when he sees doughnuts.