Answer:
Never ahead, ever behind, yet flying swiftly past, for a child, I last forever, for adults, I'm gone too fast.
The shorter I am the bigger I am.
I tremble at each breath of air and yet can heaviest burdens bear.
I am the most famous dinner ever attended. What am I?
I have skin, more eyes than one. I can be very nice when I am done. What am I?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.