This video is a comparison of the average IQ level between the countries in the world but keep in mind that IQ levels vary from person to person so that doesn't mean a whole country is dumb

NOTE BRIEFLY:
The data depicted in this video is a result of vigorous study, research, people's experiences, surveys and gathering data from various credible sources which are linked below.

Source:
https://worldpopulationreview.com/country-rankings/smartest-countries

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