According to CNN national security correspondent David Ensore, as of 2002 bin Laden had married four women and fathered roughly 25 or 26 children.
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Only 2% of the worlds population is blonde.
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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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In Korea, a child’s first birthday is the most important. In one part of the celebration, several items are placed on a table. The one that the baby picks up first is said to predict their future.
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Roughly a quarter of the world's people live in China.
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The Japanese, on average, are the shortest people.
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There are about 255 babies born worldwide every minute.
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Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
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