Why?..... it is a quiz not a typing exam. Most people that do quizzes, if they don't know the answer, like to try and work out the answers with logic or failing that by guesswork. That way people learn more and feel that they are indeed not wasting their time.
Missed Ukraine, Cuba, Nicaragua. I feel like with a lot of these quizzes sometimes I'd rather give up early than take the time to guess every country that comes to mind
:-P