Answer:
I am used when you jump off a bridge for fun.
I have a brother. However much we run we do not reach each other.
I touch the Earth, I touch the sky, but if I touch you, you’ll likely die. What am I?
I am what no man ever yet did see, which never was, but always is to be. What am I?
A necessity to some, a treasure to many, I'm best enjoyed among pleasant company. Some like me hot, some like me cold. Some prefer mild, some like me bold. What am I?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?