I'm an idiot, but my wife and daughter are frickin' geniuses. My wife is fluent in Danish, German and English. She can carry on basic conversations in Swedish and Norwegian. My daughter speaks Danish and English and can switch between the two, depending on who she's talking to.
Most people in Europe, with the exception of some Germans and French, are bilingual. English, while it's not the most widely spoken language in the world, is the the most universal.
I'm trying to learn Danish, but the course I'm in isn't geared toward beginners(read as Morons)and this may be what determines how long I stay in Denmark. In order to get my permanenet residency permit I have to speak, read and write Danish at an 8th grade level.