10 most difficult sport riddles

Despite death of 83 spectators and 120 injured, the race was continued. Eight hours after the accident, while leading the race, the Mercedes team withdrew their cars. Mercedes invited Jaguar to also retire, but they declined.

Karate developed from the indigenous martial arts of Ryukyu Islands (today Japanese) under the influence of Chinese martial arts. The Ryukyu Kingdom was an independent kingdom from the 15th to 19th century, and despite its small size, the kingdom played a central role in the maritime trade networks of medieval East Asia. Until the 19th century, it has had much more in common with China, than with Japan.

Wakeskating is a water sport and an adaptation of wakeboarding that employs a similar design of board manufactured from maple or fibreglass. Unlike wakeboarding, the rider is not bound to the board in any way, similar to the skateboard, from which the name derives.

There were the Olympic Games in St. Louis (1904), twice in Los Angeles (1932, 1984) and in Atlanta (1996)

So far the Olympic Flame went out 5 times. In 1976 in Montreal the fire went out due to intensive rain. In Athens in 2004 the flame went down on the historical stadium of 1896. During Beijing Games of 2008 it was gone due to "technical issues". During the relay to London in 2012 the flame got extinguished on a boat. On the relay to Sochi in 2013 fire went out at Red Square of Moscow.

The trophy is named after America, the first yacht to win it in 1851 in a race around the Isle of Wight. It is the oldest active trophy in sports.

On December 24, 1989, Alfredo di Stefano was awarded a Super Ballon d'Or. To this day, he remains the only player to have received this award. It was an accolade awarded by France Football in recognition of his outstanding career achievements. Johan Cryuff and Michel Platini were shortlisted for this award as well. But Real Madrid's Blond Arrow won the vote and was given this unique distinction.

The number of events grown rapidly between 1980 (203 events in Moscow) and 2000 (300 events in Sydney).

Real Madrid was playing its matches at Estadio de Chamartín until 1946 year. A year after the Nuevo Estadio Chamartín was opened. Next years club's management changed the stadium's name to Estadio Santiago Bernabeu. Every member of club's management agreed to this except the president, but he couldn't change the decision alone

Uruguay has the most championships in the tournament's history, with 15 cups. Next are Argentina (14); Brazil (8); Chile, Paraguay, and Peru (2 cups each).