I guess some people put a lot into the psychological "test" but I don't give it much thought. I never even finished mine. There might be some valuable information to be taken from the answers but I view it only as a glimpse of the most basic compatibility level.

To your other question, I can only speak from the point of view from the USA but "How are you?" is just sort of a greeting. When first speaking with a person (friend, family, stranger...anybody) we usually say something like "Hello Mariya, my name is Tim. How are you?" or "Hi mom, how are you and dad?".

Most people just answer with a simple "I'm good, thank you" or "I'm doing fine" and move the conversation forward. It's not usually a literal question; you don't need to answer with a list of everything that is good or bad, though you can.

I hope that kind of makes sense; the phrase can be used multiple ways but if a man writes to you and says "How are you, Mariya?", just think of it as a greeting. Nadia has listed some good responses.