Comment on IQ world rank by country and which are the smartest nations by Stephen.
The country with the highest average IQ is Japan, with an average IQ of 106.48, according to "The Intelligence of Nations – 2019" by Richard Lynn and David Becker. This high average IQ is likely due to a combination of factors, including Japan's rigorous educational system, significant investment in research and development, and efficient policies, particularly in education and technology. The online iq test is available at https://iqtestonline.io/
