It is impossible to hum if your nose is plugged.
366
An iceberg contains more heat than a lit match.
73
Dartboards are made out of horsehairs.
129
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
No one knows Albert Einstein's last words. Just before he passed, he spoke several words in German, but his nurse only knew English.
154
An olive tree can live up to 1,500 years!
58
If you had 10 billion $1 notes and spent one every second of every day, it would require 317 years for you to go broke.
109
In many countries, urine was used as a detergent for washing.
17