Awarding people money for doing well in IQ tests causes them to score better, $10 increased people's score by an average of more than 20 IQ points. IQ tests don’t just measure intelligence - they also measure effort.
9
Approximately 70,000 people in the U.S. are both blind and deaf!
7
The offspring of two sets of identical twins are legally cousins but genetically siblings.
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More boys than girls are born during the day; more girls are born at night.
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More redheads are born in Scotland than in any other part of the world.
85
Americans collectively eat one hundred pounds of chocolate every second.
60
Men laugh longer, louder, and more often than women.
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