You can't tickle yourself.
29
Consumption of TNT turns urine amber or deep red, which people often mistake for blood.
301
Only two in one thousand diamonds are considered truly colorless.
240
If you put two straws in your mouth, one inside a drink and one outside it, you won't be able to drink through either straw.
202
The G in 'g-string' stand for groin.
322
