Answer:
I'm light as a feather yet the strongest person can't hold me for more than a few minutes. What am I?
I hide but my head is outside. What am I?
I hold two people together but touch only one.
I am constantly overlooked by everyone but everyone has me. What am I?
I am an English word that is as long as I am valued. What am I?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.