The problem with quizzes like this is that it accounts for only what's reported - outside of (most) of the developed westernized countries, very few are supplying even close to actual figures. Does India really have an accurate tally of deaths per capita? No way.
It is an interesting concept, but a bit weird in execution. Some of these categories are total numbers for a span of years or for a single year, while others are death rates. It makes it hard to guess, as the ones that are total numbers are skewed by overall population of the countries (i.e., China and India have the most total traffic deaths because they have the most people, not necessarily because traffic fatalities are more common there).