Answer:
I am a table you can eat. What am I?
What can be as big as an elephant but weighs nothing?
I am a mini solar powered computer.
You can always find me in the past. I am created in the present, but the future can not change me. What am I?
I am so delicate that even mentioning me breaks me. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.