3. Danish
This Germanic language is the official language of Denmark, and it is spoken by around 5 million of people in the world, who are usually settled in Greenland and the Faeroe Islands besides Denmark. Although it is very rich in vowels that are completely unfamiliar to English speakers, such as æ, ø and å, it is still very similar regarding the vocabulary and grammatical rules, so it is also estimated that it can be learned in 23-24 weeks, that is, 575-600 hours.
