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
95% of people feel uncomfortable when the TV volume is an odd number.
392
Muhammad is the most common name in the world.
96
Women rate men more attractive if other women are looking and smiling at him.
17
More boys than girls are born during the day; more girls are born at night.
120
A man is more likely to get a woman's phone number if he is accompanied by a dog.
20
‘Old people smell’ is actually caused by a chemical, 2-nonenal, that old people secrete through their skin
8
Only about 2% of the world population has green eyes.
36