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
The average single man is one inch shorter than the average married man.
88
Females learn to talk earlier, use sentences earlier, and learn to read more quickly than males.
119
More redheads are born in Scotland than in any other part of the world.
85
44% of kids watch television before they go to sleep.
106
Each year, around 24,000 Americans are bitten by rats!
65
One million Americans, about 3,000 each day, take up smoking each year. Most of them are children.
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