I went back and forth about including Tanzania, as it is separated from the Democratic Republic of the Congo by Lake Tanganyika. I figured that If I didn't include Bahrain for Saudi Arabia (they are connected by a bridge), then I wouldn't include Tanzania. However, it seems obvious that they border each other, so I have added Tanzania.
I made this quiz because "Czechia" was universally added as a recommended type-in. I have updated the quiz to accept more flexible spellings for 20 answers.