One in 500 humans has one blue eye and one brown eye.
145
The average woman uses her height in lipstick every 5 years.
146
Awarding people money for doing well in IQ tests causes them to score better, $10 increased people's score by an average of more than 20 IQ points. IQ tests don’t just measure intelligence - they also measure effort.
9
People with blue eyes are better able to see in the dark.
153
The offspring of two sets of identical twins are legally cousins but genetically siblings.
63
Identical twins do not have identical fingerprints.
79
The average single man is one inch shorter than the average married man.
88
Intelligent men tend to be more sexually faithful.
31