Only 8% of the world’s currency is physical money. The rest exists only on computers.
20
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
Only humans shed emotional tears.
331
Blue eyes are the most sensitive to light, dark brown the least sensitive.
105
Stilts were invented by French shepherds who needed a way to get around in wet marshes.
45
NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
8
The human eye blinks an average of 4,200,000 times a year.
233
85% of all Valentine's Day cards are purchased by women!
38