What's your source on this? Whatever it is, it's not current. Sudan has been split in two and is no longer #10, but #15, just before Libya. South Sudan should come right after CAR. Also, Ukraine seems a bit high on this list, even including Crimea.
You guys should really allow CONGO for what you call "THE DEMOCRATIC REPUBLIC OF THE CONGO" which I tried DROC, Congo, Republic of Congo, Democratic Republic of Congo, and The Republic of Congo, which all did not work! BTW: Quiz outdated