Singapore is a sovereign island city-state in Southeast Asia, which has the highest average IQ score of 108 according to a 2019 study
Hong Kong is a special administrative region of the People's Republic of China, which has the second-highest average IQ score of 108 according to the same study
South Korea is a country in East Asia, which has the third-highest average IQ score of 106 according to the same study and which is known for its high educational achievement and competitiveness
Japan is an island country in East Asia, which has the fourth-highest average IQ score of 105 according to the same study and which is renowned for its technological innovation and economic development
Taiwan is an island off the coast of mainland China, which has the fifth-highest average IQ score of 104 according to the same study and which is a major producer of semiconductors and electronics