What things should you never say to/ask a woman, and why?

My Top-5: 

1. Assume a woman wants to go out with you because she is single. In fact, not all single women are looking for relationships (surprise!)

2. Ask a woman why she is single/doesn’t have kids/decided to get married so early/has so many kids. First, it’s none of your business; second, these questions make any human being uncomfortable.

3. Say pretty much anything that starts with the words: “A woman shouldn’t…” It’s up for a woman to decide.

4. Teach women how much make-up is enough makeup, and how long their skirts should be, or try to provide any advice regarding what they should do with their bodies. Unless anyone asks for this advice.

5. “Feminism should not exist, because men and women have equal rights nowadays.”