Humor is a sign of intelligence, too—here are the funniest quotes from U.S. presidents. At a score of 175, Harvard grad John ...

I received an email with a chart that supposedly ranks the intelligence quotients of U.S. presidents, along with the claim that President-elect Donald Trump would ...

As IQ scores were not available for most of the presidents, Simonton used a "historiometric ... having known correlations with IQ, such as highest level of education, academic honors, scores ...