Answer:
Never ahead, ever behind, yet flying swiftly past, for a child, I last forever, for adults, I'm gone too fast.
What is the edge of earth and bread?
I can go through glass without breaking it.
To cross the water, I'm the way. For water I'm above, I touch it not and truth to say, I neither swim nor move. What am I?
You throw me out when you use me and take me in when you are done. What am I?
I flow from the Homerβs mouth when he sees doughnuts.