I'm just a little bit confused today. If I were to ask a question, would it be "Why is art a culture?" or "Why art is a culture?". Is there a difference? I'm thinking the correct one is the former but I'm not sure if you can put "a" after the subject?
To put it simply, the second one is not a question. It is a statement or proposition. It could be the title of an essay that argues that "art" is a "culture" (not sure the concepts fit together, but nevertheless). The form is similar to many argument summaries: "Why movies are a form of art" or "Why painting is like theater."
Think of these sentences:
"Why are you going to the store?"
"I am going to explain why I am going to the store"
"Why I am going to the store is my business, not yours."
Only the first one is a question, although all three use "Why."