Answer:
If you have me, you want to tell me. If you tell me, you don't have me.
What word becomes smaller when you add 2 letters to it?
I'm the start of eternity and the end of space. There are two of me in heaven and one in hell.
What is part of you and all around you but if it entangles you, it will kill you?
You can carry it everywhere you go, and it does not get heavy. What is it?
What never gets any wetter no matter how hard it rains?