• Tokyo was once known as Edo.
• There are more TV sets in the US than there are people in the UK.
• The Vatican is the world's smallest country, at 0,44 square km (0,16 square miles).•

• The oldest inhabited city is Damascus, Syria. 
• Leonardo da Vinci (1452-1519) made sketches of a submarine and William Bourne, a British mathematician, drew plans for a submarine in 1578. But it was only in 1620 that Cornelius van Drebbel, a Dutch inventor, managed to build a submarine.
• African elephants only have four teeth to chew their food with.
• A house fly lives only 14 days.
• An annoyed camel will spit at a person.
• Sheep are mentioned 45 times and goats 88 times in the Bible. Dogs are mentioned 14 times and lions 89 times, but domestic cats are not mentioned.
• In Denmark there are twice as many pigs as people.
• The one place where a flag flies all day, never goes up or comes down, and does not get saluted, is the moon.
• It takes your food seven seconds to get from your mouth to your stomach. 
• One human hair can support 3 kg (6.6 lb). 
• Human thighbones are stronger than concrete. 
• A woman's heart beats faster than a man's. 
• There are about one trillion bacteria on each of your feet.
• Women blink twice as often as men. 
• The average person's skin weighs twice as much as the brain.
• Your body uses 300 muscles to balance itself when you are standing still. 
• If saliva cannot dissolve something, you cannot taste it. 
• The average man's penis is three times the length of his thumb.

(P.S Women reading this will now be finished. Men are still busy checking their thumbs!!)