Answer:
I am commonly ate before I'm born and after I'm dead.
you cannot keep me until you have given me
I can swim but never get wet. I can run but never get tired. I follow you everywhere but never say a word.
I am a precious stone as clear as diamond. Seek me out while the sun's near the horizon. Though you can walk on water with my power try to keep me and I'll vanish in an hour.
What is shaped like a box, has no feet, and runs up and down?
I am a mini solar powered computer.