Women have a slightly higher average IQ than men.
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Over 98 percent of Japanese people are cremated after they die.
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Men laugh longer, louder, and more often than women.
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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.
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