One in 500 humans has one blue eye and one brown eye.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
Senegalese women spend an average of 17.5 hours a week just collecting water.
27
People with light eye colors (like blue, green or grey) have a higher alcohol tolerance.
194
Children's sense of smell is better than adults'.
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Babies' eyes do not produce tears until the baby is approximately six to eight weeks old.
58
Research has determined that most people are happiest at 7:26pm on a Saturday night.
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