Whispering is more wearing on your voice than a normal speaking tone.
443
Months that begin on a Sunday will always have a 'Friday the 13th'.
362
There are around 200 frozen corpses on Mount Everest.
696
Consumption of TNT turns urine amber or deep red, which people often mistake for blood.
301
You can't tickle yourself.
29
Cherophobia is a fear of fun.
706
99% of people cannot lick their elbow.
253
Isaac Asimov is the only author to have a book in every Dewey-decimal category.
90