Pictured in the thumbnail is the flag of Nauru. The star indicates its position relative to the equator. (But not included on the quiz because it's sudden death and a very obscure country).
It's the 2nd least guessed country on COTW, by that definition Sao Tome is the only obscure country haha. Especially in sudden death it'd be (or, was) much more punishing
Short answer, no, long answer, it would need someone smarter than me because there's no way to randomly sort only above or below the equator, or for the quiz to know which side of the equator each country would be on
Think of the quiz like the planet. The equator is in the center. You have to click all the countries that are in the correct location relative to the equator, for instance, New Zealand is south of the equator, and is south of the EQUATOR bubble on this quiz, therefore it's a correct answer.
great inventive use of the sudden death quiz - thank you for making this!