what am I

Question: You want me more, you want me less. This is just how I put your control drama's to test. Wont matter if you watch me, i'll only seem to stall. It's seems just when I'm up is when you'll miss me at all.

Question: Surrounded by life , yet life is its biggest enemy. But without life there is no need for it to exist. What is it?

Question: During what month do people sleep the least?

Question: When is 99 more than 100?

Question: People see through me, but none pass through without killing me. I can be anywhere, and can be seen double or single. What am I?

Question: The more you add, the less it weighs.