Evil aliens have decided to kill everyone on Earth! Fortunately, they've given you two minutes to save as many as you can. All you have to do is name a country to save everyone in it.
1.22 million. Citypopulation.de, which is the source for this quiz, lists Köln-Düsseldorf-Bonn-Wuppertal as a single conurbation with 4.85 million people.