Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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By weight, Bone is five times stronger than steel.
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0.3% of solar energy from the Sahara is enough to power the whole of Europe.
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There are about 255 babies born worldwide every minute.
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Two in five people in the world marry their first love.
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Each day, there are over 120 million sexual intercourse taking place all over the world.
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In 2005, 25 percent of Americans over the age of 50 played video games, an increase from nine percent in 1999.
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