There are actually seven different types of twins: Identical, Fraternal, Mirror-Image, Polar Body (Half Identical), Mixed Chromosome, Superfecundation, and Superfetation.
20
Males sweat 40% more than females.
104
According to some estimates, Americans are sitting on $30 billion worth of unredeemed gift cards.
223
The average woman uses her height in lipstick every 5 years.
146
40% of people who are rejected in romantic love slip into clinical depression.
72
Intelligent people have more zinc and copper in their hair.
233