Answer:
If you have me you want to share me. Once you share me you won’t have me.
What do you get when you cross a pig with a karate expert?
I'm written with two letters, said with one and seen with two. What am I?
I sit in a corner while travelling around the world.
I am an object which is used in baseball. During the day I can't be seen at all. What am I?
What can you lose that will cause other people to lose theirs too?