Something Wong

Question: A man in downtown runs a tea shop, one day his bulb goes out, so he gets on a ladder to replace it, however; he falls off and his priceless Chinese attire gets covered in tea, yet he is able to salvage it, how?

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: During what month do people sleep the least?

Question: When is 99 more than 100?

Question: What can be broken but never forgotten?

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