2% of Europeans lack the genes for smelly armpits.
6
Two in five people in the world marry their first love.
270
Children's sense of smell is better than adults'.
860
People in parts of Western China put salt in their tea instead of sugar.
16
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
There's an isolated tribe in Zimbabwe where the people have only two toes, dubbed the 'ostrich people'.
10