Not swinging your arms when you walk increases the effort of walking by 12%, the equivalent of walking 20% faster or carrying a 10 kg backpack.
12
By raising your legs slowly and laying on your back, you can't sink in quicksand.
105
Teddy bears were named after U.S. President Theodore 'Teddy' Roosevelt.
23
Paper money is not made from wood pulp but from cotton. This means that it will not disintegrate as fast if it is put in the laundry.
37
A quarter has 119 grooves on its edge, a dime has one less groove!
34
When glass breaks, the cracks move at speeds of up to 3,000 miles per hour.
423
If left alone, 70% of birthmarks gradually fade away.
193