I would not have guessed the answer to the Russia question even with a few extra minutes. I actually learned something new from one of these quizzes! :-)
Yeah that was by far the most interesting part of this quiz. Makes sense if you think about it (longer than I usually think about the answers on a general knowledge quiz, that is).
The last place in the world that spelling/grammatical corrections should be criticized is on JetPunk. mf3 was correct and did not post in some condescending way. I fail to see where the problem is.
I've had Chiari I Malformation surgery - you'd think I would have gotten brain stem - but I was another one who was taught in school that the third part was the medulla oblongata and everything else was part of those three, so nope, I missed it.
The Russian question should probably mention that it is only counting native speakers, since around a third of Mongolians have Russian as a second language. The primary source of that information is in Russian, but Wikipedia has a visualisation of it: https://commons.wikimedia.org/wiki/File:Russian_language_status_and_proficiency_in_the_World.svg
Color me blushing red. I live in Israel and missed the Russian question - even though I know how prevalent the language is here - daily newspapers, radio stations, even at least one local tv station, and supermarkets (mostly imported products from Russia and Poland). Most cosmetic products and all medicines have instructions in Russian.
For something that I missed and only 6% of people got, Israel seems pretty damn obvious in hindsight. Ugh. Usually ones that low are super obscure, that I've never even heard of, or can't pronounce.