Remember that to say please or you're welcome in Norwegian, you say Vær så snill, Værsågod.
To ask if someone speaks Norwegian, you say Kan du norsk?.
To say yes you would say Ja which sounds like yah
or to say no you would say Nei which sounds like nay-ee
(from: wikipedia - norwegian language)
Greek: Μιλατε ελληνικα? (Milate ellinika?)
ASL: Do you speak ASL?
Italian: Parli italiano?
German: Sprechen Sie Deutsch?
Spanish: ¿Hablas español?
French: parlez-vous français?