Answer:
If I have it I don't share it. If I share it I don't have it. What is it?
I am a person who pretends to be someone else
I reach for the sky but clutch to the ground. Sometimes I leave but I am always around.
I'm a precious stone in a pack of cards. What am I?
To cross the water I'm the way. For water I'm above I touch it not and truth to say I neither swim nor move.
Give it food and it will live, give it water and it will die.