Answer:
Many people own a copy of me. Without me the world would fall.
What type of shoes do spies wear?
I'm not a bird but I can fly through the sky. I'm not a river but I'm full of water.
Turns me on my backs and open up my stomach. You will be the wisest of men though at start a lummox.
I am a precious stone, as clear as a diamond. Though you can walk on water with my power, try to keep me, and I'll vanish in an hour. What am I?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?