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
Muhammad is the most common name in the world.
96
Senegalese women spend an average of 17.5 hours a week just collecting water.
27
The Japanese commonly put ketchup on their rice.
16
Humans blink over 10,000,000 times a year!
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