The IQ test is not only widely known and deployed but is also highly controversial.
3. William James Sidis
There is no official IQ test result for William James Sidis, but experts speculate that he had an IQ of 210-250.
4. Marie Curie
She never took an IQ test, but experts estimate that she would have scored between 180 to 200, one of the highest IQs on record.
5. Kim Ung-Yong
He used to be listed in the Guinness Book of Worlds Records for his IQ of 210, one of the highest IQ scores at that time.