An average of 247 billion emails are sent every day

@Factographer

An ostrich's eye is bigger than its brain

@Factographer

The most common pain is back pain

@Factographer

The elephant needs large ears to cool its body, like an air conditioner

Heat is released through the blood vessels in the ears. To speed up air circulation, elephants flap their ears

@Factographer

Peniaphobia - fear of being poor and without money

@Factographer

Platinum used to be considered wrong silver and thrown in the water

@Factographer

Indian schools are accepting plastic instead of tuition fees. So children from poor families get an education, helping the planet

@Factographer

There are eight colours of eyes in the world. The rarest colour is considered to be purple eyes

@Factographer

1 in 4 people can compose a message without looking at the phone screen

@Factographer

Forgetfulness is good for the brain

Removing unnecessary information helps the nervous system stay flexible

@Factographer

The kakapo is the world's only flightless parrot

@Factographer

Surfing is included in school curricula in Hawaii

@Factographer

In the Livermore fire brigade hangs a 4 watt electric light bulb that has been working almost continuously since 1901

It's only gone out a few times during power outages and twice during moves

@Factographer

A woman's body contains 6 times more gold than a man's

@Factographer

A chameleon takes 20 to 30 seconds to change colour

@Factographer

The Tibetan Mastiff is one of the biggest dogs on earth

The Tibetan Mastiff was bred centuries ago to guard ancient monasteries, villages and flocks of sheep high in the mountains

@Factographer

Three very important ingredients that keep the brain healthy: chocolate, laughter and sex

@Factographer

Because of the polar night, the surface of the Arctic Ocean cools continuously for 50-150 days a year

Winter lasts about 6.5 months in the region, and summers are sunny but cold, so the Arctic ice hardly ever shrinks in size

@Factographer

Measuring swimming costume lengths on the beach in the 1920s

If a swimming costume was too short, women were fined

@Factographer

Pepsi can be distinguished by its citrus and sweeter taste, and Coca-Cola by its vanilla scent

@Factographer

In the East, hookah smoking is a tradition akin to Japanese tea-drinking ceremonies

@Factographer