Great idea for this quiz, but the closest object to "Greenland" should be its accompanying arrow, not a small cluster of islands. I tried Faroe Islands as well before realizing Greenland had an arrow.
Also, if the answers must be the correct countries, that should explicitly be stated in the instructions. Saying "fix" the mistakes is vague. When I saw that both the "Incorrect" and "Correct" boxes were blank, I assumed I had to enter both. So when I started with "Ireland", intending to follow that up with "Iceland", I was left wondering what in the world the quiz was looking for. If the "Incorrect" ones will be filled-in upon entry of the "Correct" country, that should be stated in the instructions. I was ready to nominate this quiz until I encountered these imperfections. Iron these out, and I think this is a really good idea for a series of quizzes.
Also, if the answers must be the correct countries, that should explicitly be stated in the instructions. Saying "fix" the mistakes is vague. When I saw that both the "Incorrect" and "Correct" boxes were blank, I assumed I had to enter both. So when I started with "Ireland", intending to follow that up with "Iceland", I was left wondering what in the world the quiz was looking for. If the "Incorrect" ones will be filled-in upon entry of the "Correct" country, that should be stated in the instructions. I was ready to nominate this quiz until I encountered these imperfections. Iron these out, and I think this is a really good idea for a series of quizzes.