Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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An Australian study found that homework is of little to no academic value to students in elementary and junior high schools.
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In many countries, urine was used as a detergent for washing.
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22% leave the glob of toothpaste in the sink.
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A million dollars weighs about a metric ton. Hence the expression "a ton of money."
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Extremely high pressured water can easily cut through a steel beam.
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The scent of women’s tears temporarily reduces sexual arousal and testosterone production in men.
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You can actually sharpen the blades on a pencil sharpener by wrapping your pencils in aluminum foil before inserting them.
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