"I do not speak Norwegian."
Translation:Jeg snakker ikke norsk.
I haven't looked at the Norwegian tree, just see the sentences in the discussion stream here. Even if the course seems great, there's sometimes some weird sentences or they will teach you only one meaning of a word. I am sure it is similar to the courses I completed (French and German), sometimes Duolingo wants a translation which is more word by word than what you would typically get from a native speaker of the language. With time you will get a feel for the language. Good luck and: Stå på, dette klarer du fint!