1. Oinos is the Greek word for "ace or dice" which literally means one, which is why Ace is the first card in the deck. 

Only one person in recorded history has ever been allergic to food.

Bill Gates makes $50 US every second. 

2. In Jewish law, the testimony of two witnesses are required to verify and validate events, such as marriage, divorce, and a crime that warrants capital punishment.

In Association Football, the scoring of two goals by one individual in one match is called a brace. 

Two is the only even prime number.

Skiing is the only word in English language with two "I". 

"Twee" is Dutch for two. So every time your child mispronounces "three", their speaking Dutch, saying two.

3. An octopus has three hearts.

'Bookkeeper' and 'Bookkeeping' are the only words in the English language with three consecutive double letters.

Thirteen babies are born every three seconds. 

The least used three letter word is "use".

Mitsubishi is actually two words put together, mitsu meaning 'three' and bishi meaning 'water caltrop'.

4. Four has four letters and is the only number in English language where the letters match the value.

The four-second rule is the amount of time an internet user will wait for a webpage to load before leaving or going to another website.

Only four words in English language end with 'dous', hazardous, stupendous, tremendous and horrendous.

The fourth finger (or the ring-finger) moves when you move your little finger. 

All insects with wings, except flies, all have four wings.

In Tetris, a game named for the Greek word for 4, every shape in the game is formed of 4 blocks each. 

5. Nine deaths occur every five seconds. 

On almost all devices with a numeric keypad such as telephones, computers, etc., the 5 key has a raised dot or raised bar to make dialing easier. Persons who are blind or have low vision find it useful to be able to feel the keys of a telephone. All other numbers can be found with their relative position around the 5 button (on computer keyboards, the 5 key of the number pad has the raised dot or bar, but the 5 key that shifts with % does not).

Pentameter is verse with five repeating feet per line; iambic pentameter was the most popular form in Shakespeare.

There are actually five basic tastes rather than four, sweet, salty, sour, bitter and umami.

Under British Law, when you reach the age of five you can drink alcohol in private, for example home. 

The number 5 (๕) is pronounced as 'Ha' in Thai language.

555 is also used by some as slang for 'HaHaHa'!

According to a research by Commtouch, quoted by NYT, only 5 countries: USA, South Korea, Russia, China and Brazil generate 99% of spams.

Soup 5, variously spelled 'Soup Number Five' or 'Soup #5', is a soup made from bull's testicles or penis. The dish originates from Filipino cuisine. It is believed to have strong aphrodisiac properties.

6. People with sexdactyly have six fingers on each hand. 

In the ancient Roman calendar, Sextilis was the sixth month. After the Julian reform, June became the sixth month and Sextilis was renamed August. 

At a Nike factory in Vietnam workers make $1 a day while Nike makes $3,000 every six seconds.

There are six scriptures about homosexuality in the Holy Bible. Three in the Old Testament and three in the New Testament.

It takes six months to build a Rolls-Royce and thirteen hours to build a Toyota. This has become an implication meaning, if you want to achieve greatness, it takes time.

7. The word LUCK requires seven pen strokes.

Merchandise 7X is the secret ingredient in Coca-Cola and has been the secret ingredient since it was invented in 1886.

Adolf Hitler was known to take seven teaspoons of sugar with his tea or coffee.

 Under British law, at the age of seven you can open and draw money from a National Savings Bank account or a Trustee Savings Bank account.

Roy Sullivan, a park ranger, was struck by lightning seven times. Which is the record for being struck by lightning the most and surviving.

8. According to ancient Indian mythology, the earth is supported on the backs of eight white elephants.

Every eight hours a rhino is killed in South Africa.

It is possible for a girl to experience a menstrual cycle at the age of eight years old. This is known as precocious puberty.

The lead research economist at the World Bank, Branko Milanovic, has reported that the first calculation of global income-inequality, and he has found that the top 8% of global earners are drawing 50% of all of this planet's income. 

You are eight times more likely to be killed by a police officer, in the U.S., than by a terrorist.

9. Redivider, with nine letters, is the longest palindromic word in the English language. A palindromic word has the same sequence of letters backwards or forwards.

A full moon is nine times brighter than a half moon.

Water expands 9% when it is frozen.

10. Brad Byers holds the Guinness World Record for "The Most Swords Swallowed and Twisted at One Time" by swallowing Ten 27 inch swords one at a time and then twisting all Ten swords 180 degrees in his throat.

The Roman numeral for ten is X (which looks like two V's [the Roman numeral for 5] put together); it is thought that the V for five is derived from an open hand (five digits displayed), and X for ten from both hands. Incidentally, the Chinese word numeral for ten, is also a cross: 十.

Lake Assal in Djibouti, outside Antarctica, is 10 times more saltier than ocean water.

The Canadian forestry industry makes up 10% of the world's forested land. That's 990 Million acres of land.

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