Only 1% of people who buy marmalade are under the age of 28.

Since 1945 all tanks in the British army have been equipped with tea-making facilities.

Until the 5th century the must-have Roman gadget was a portable sundial.

A 'ka' door was a fake door built in Egyptian tombs as a link between the living and the dead.

James Franco's Museum of Non-Visible Art contains no physical work, just ideas. A 'piece' called 'Fresh Air' sold for $10,000.

Artificial blood vessels can be made with a candyfloss machine.

Swedish only became Sweden's official language in 2009.

Healthy human brains feel like warm scallops.

The maps used by self-driving cars cannot be read by humans.

The smell of rosemary improves children's memories.

Trees have their own song.

Plants can tell the time better than humans.

Surgeons often operate to music.

The average British garden contains over 20,000 slugs and snails.

Data has overtaken oil as the most valuable resource.

The halfway line at Brazil's Zerao football stadium runs exactly along the equator.

Orangutans are good at charades.

Dolphins have no vocal cords.

Scientist can tell how old you are from the finger prints on your phone.