Very nice grid! Only thing is I typed "island" for the islands group and it didn't work. Also I don't think Australia is actually an island but I got what you were going for anyway.

Nice Grid. It looked very difficult at first, but i was able to sort it. Unfortunately, "Island nations" should work for that category, but it doesn't. Also, The middle eastern countries are also all arab or muslim countries, and that should be reflected in your possible answers.

Good but I typed Island nations and it didnt work! I needed another point too!!! Why isn`t Australia an Island Me? I think it is! A large Island Nation but still one. But I enjoyed trying even if I did only get 2 points.

UK isn't an island, it shares a land border with Ireland. Largest by mass? How do you weigh them?