Where are the quiz instructions? Awesome quiz! I hate that the king of Swaziland changed the name to Eswatini, because now they aren't similar in name! ;)
The average height of Switzerland is 1350 meters, the one of Swaziland 305. None of them are over 3000 m in average elevation, that applies only to Bhutan, Nepal, and Tajikistan. Please change! And please use metric units! Otherwise, great series, I’m learning a lot. Could also be applied to countries who are not similar in name.
very cool ! though the question for Federer, and to a lesser degree the percentage of population living in the capital, have "both" as an option while they obviously can't be