Answer:
What is light as a feather but even the strongest man cannot hold it for more than a few minutes?
I run around the streets all day. Under the bed or by the door I sit at night, never alone. My tongue hangs out, waiting to be fed during the day. What am I?
I have a frame but no pictures. I have poles but not standing up. What am I?
I can run but not walk. Wherever I go, thought follows close behind. What am I?
I am a mini solar powered computer.
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.