Yes, but questions usually start with the verb anyway. If you front an element in a question, the verb stays in the second position.
Almost anything! Objects, adverbs, and prepositional phrases are common. Avoid fronting the subject if you want to emphasize something else.
Yes, 'man' is the generic 'one' or 'you' in Swedish and is used by everyone.
Mainly in service professions (hotels, luxury stores) or when addressing a group of people.
Yes, but mostly in service professions (restaurants, hotels) or when addressing a group. Using it with an individual can feel archaic or overly formal.
It refers to the bureaucratic Swedish used by government agencies. It's known for being very formal, using words like vederbörande and härmed.