"What do they have?"
Translation:Hva har de?
Norwegian has a grammatical rule known as V2 - saying that the verb always must be the second element of a sentence. When you add something before the subject (in this case a pronoun), like an adverbial or a question word, the subject is "pushed" behind the verb: Hva HAR de?/What do they HAVE? De HAR et barn./They HAVE a child. Nå HAR de et barn./Now they HAVE a child.