Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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Only about 2% of the world population has green eyes.
36
You can only remember 4 things at a time.
31
35% of the people using personal ads for dating are already married!
23
The average American spends a third of their overall time online playing games and using social networks.
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A man is more likely to get a woman's phone number if he is accompanied by a dog.
20
Only 2% of the worlds population is blonde.
15
Yawns are more contagious among people with closer relationships.
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