I don't want to bring topic about war in this quizz, I just think that Russia is asian country cause european part is significantly smaller than asian.
"Farest" isn't a word in English. Furthest is the word that should be used in that clue; farthest could also be used but is less common in my country (Australia).
It's a good idea for a quiz, but there could be more explanations. For example, whether "richest" is by GDP or GDP per capita (based on the answer, I'm guessing the second).