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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The average American/Canadian drinks about 600 sodas a year!
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People with light eye colors (like blue, green or grey) have a higher alcohol tolerance.
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44% of kids watch television before they go to sleep.
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Muhammad is the most common name in the world.
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It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
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Most of the world's people must walk at least 3 hours to fetch water!
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