4. Kim Ung-Yong – IQ 210

Born in 1963, Kim Ung-Yong started speaking around the time he was just 6 months old. By his 3rd birthday, Kim Ung-Yong could already read English, Korean, Japanese, and German. Later on, he would move to the United States to further his studies, subsequently getting a job at NASA where he worked for almost 10 years. At some point, however, Kim Ung-Yong decided to abandon his NASA career and return to his home country of South Korea to become a teacher.