More importantly, the numbers are rough and in a few cases I had an off by one issue. (E.g. I know global median life expectancy is around 65 years, quiz shows

More importantly, the numbers are rough and in a few cases I had an off by one issue. (E.g. I know global median life expectancy is around 65 years, quiz shows 60 and 70 and asks after an average. Or the question about educated women in low income countries where I know it's roughly about half and test showed 40% and 60%, or being out by half billion in map question between Asia and Africa. Duh.)