Yes. Read your question for an example.
What natural sight would you go to see to simply stand and marvel?
Yes, the word 'if' can be used in a question. Example: "If there are two pigs, how many cows are there?"
On the English site, English words that address the topic and focus of the question. For any other the other WikiAnswers language sites, the language of that site is best.See the related question...
Who in a question is a pronoun. e.g. Who is reading this?