Name the closest country whose name starts with the next letter of the alphabet. Start with Afghanistan. E.g., name the country starting with B closest to Afghanistan. Then the country starting with C closest to the B country, etc.
There's a bug in this quiz: there are 24 answers instead of 23; the 24th is "Afghanistan", even if that makes no sense, plus there is no space to write it down!
I enjoyed doing the quiz and I had to go 'untimed' as I was going to run out of time, could not finish it and found out that my stumbling block was 'Macedonia' I had tried 'North Macedonia' for the 'N' clue, so could not think of a country in that position beginning with 'N'.