Some feedback: I thought "biggest subdivision" would ask for largest subdivision by area, not most populated; I had to type in both name and surname for the Italian president; I had to type in "French euro" as a currency for France (just "euro" didn't work). Also, the name of the currency is Euro with no country-specific adjectives, but I guess it wouldn't really matter as long as you accept "euro" as a type-in.
Interesting quiz nonetheless!