You should probably make this a yellow box quiz so that the answers must correspond to the hints. Otherwise this is just an exercise in naming all European countries.
Hey! I like the idea of the quiz, but there are a couple of things which should be fixed for the quiz to become even better.
Lithuania is already shown in the answers and it's not self-explanatory that you have to type it in again. The official English name of the Vatican is Vatican city (check the "Countries of the World" quiz). Hence the really low percentage. You could also accept just Vatican as a type-in. The official name of Bosnia is Bosnia and Herzegovina. You can still accept Bosnia as a type-in, but show the whole name.
If you're going to write the Russian and the Belarussian titles in Cyrillic, to this for the Bulgarian, the Macedonian and the Serbian ones, too.
This is the Macedonian: "Денес над Македонија“, this is the Bulgarian: "Мила Родино" аnd this is the Serbian: "Боже правде".
Lithuania is already shown in the answers and it's not self-explanatory that you have to type it in again. The official English name of the Vatican is Vatican city (check the "Countries of the World" quiz). Hence the really low percentage. You could also accept just Vatican as a type-in. The official name of Bosnia is Bosnia and Herzegovina. You can still accept Bosnia as a type-in, but show the whole name.
If you're going to write the Russian and the Belarussian titles in Cyrillic, to this for the Bulgarian, the Macedonian and the Serbian ones, too.
This is the Macedonian: "Денес над Македонија“, this is the Bulgarian: "Мила Родино" аnd this is the Serbian: "Боже правде".