Some fascinating facts about World Cups

First hit-wicket
In the 1975 World Cup final, West Indies opener Roy Fredricks lost balance and kicked the leg stump with his left leg after hooking a Dennis Lillee bouncer. Agonisingly, the ball went for a six- over long-leg, but Fredricks became the first player to be out hit-wicket in ODI history.
A captain agrees to change a four to six and his team lose by 1 run
When Dean Jones lofted Maninder Singh over mid-off during a 1987 World Cup match in Madras, the umpire, who was unsure if the ball had crossed the boundary, took Ravi Shastri's word and signalled four. However, Jones walked up to umpire Dickie Bird and suggested that it was a six. During the innings break, Australian team manager Alan Crompton spoke to the umpires, who then approached India's captain, Kapil Dev. A generous Kapil agreed to change that four to six, which meant India's new target would be 271. Interestingly, India went on to lose the match by 1 run.

First player to play for two countries
Kepler Wessels became the first player to represent two countries in ODI history. He played for Australia from 1982 to 1985, before representing South Africa in 1991. Despite local outrage, Wessels was controversially named as South Africa's captain for the 1992 World Cup.
A captain who returned from retirement to win a World Cup
Pakistan's World Cup winning captain Imran Khan returned to international cricket in 1988 after announcing his retirement the previous year. It was at the request of the Pakistani President, General Zia-Ul-Haq, that the all-rounder represented the country again. Eventually, his inspirational captaincy gave Pakistan their first World Cup.
Umpires ask Cronje to remove ear piece used for communicating with coach
During South Africa's 1999 World Cup opener against India, captain Hansie Cronje and Allan Donald wore ear pieces to get instructions from their coach Bob Woolmer. India's Sourav Ganguly noticed Cronje talking to himself and referred the case to the on-field umpires, who then asked both Cronje and Donald to remove the equipment after consulting with the match referee.
A very emotional hundred
Sachin Tendulkar returned from his father's funeral in India the day before and hit a splendid 100 against Kenya at Bristol in the 1999 World Cup. He was given a standing ovation when he made his entry into the ground.
Miandad comes out of retirement to play six World Cups
Javed Miandad returned to international cricket just 10 days after announcing his retirement in 1994. Pakistan's Prime Minister Benazir Bhutto had a discussion with Miandad, after which the star batsman decided to change his mind. Featuring in the 1996 World Cup, Miandad became the first cricketer to play six World Cups.
A World Cup without playing a single game
Interestingly, left-arm pacer Sunil Valson became the first player to win a World Cup without even featuring in a single game. Valson was selected in the Indian squad for the 1983 World Cup, but he never got a game in the tournament. Ironically, he was never picked for India again.
The coin goes up twice in a World Cup final
The coin had to be tossed twice at the 2011 World Cup final. When the coin went up for the first time, match referee Jeff Crowe could not hear the call from Kumar Sangakkara. The coin came down as heads and Sangakkara reckoned he called the right side of the coin and was about to say that his side would bat first. However, MS Dhoni said that he heard a call of 'tails' from Sangakkara. Crowe then said that the coin would go up once more.
Cricket experiences 100mph for the first time
Pakistan's Shoaib Akhtar bowled cricket's first recorded 100 mph delivery against England's Nick Knight in the 2003 World Cup.
Men for the big occasion
Mohinder Amarnath (1983), Aravinda De Silva (1996) and Shane Warne (1999) hold the unique record of winning Man of the Match awards in both semifinal and final of the World Cup games.
The oldest to play the World Cup
In 1996, Nolan Clarke of the Netherlands became the oldest player (47 years, 257 days) to play in a World Cup.
The first ever hat-trick in the history of World Cups
Chetan Sharma dismissed Ken Rutherford, Ian Smith and Chatfield off successive deliveries in 1987, thus recording the first ever hat-trick in the history of World Cups. It was also the first hat-trick by an Indian in ODIs.
Highest run-getter in World Cups
During his knock of 52 against the Netherlands in the 2003 World Cup, Sachin Tendulkar surpassed Javed Miandad (1083) to become the highest run-getter in World Cup history. Eventually, Tendulkar finished with 2278 runs in World Cups.
The Youngest World Cup winner
Aged 22 years and 3 months, Piyush Chawla was the youngest to taste World Cup success when MS Dhoni's devils defeated Sri Lanka in Mumbai in 2011.
Father-Son combo
Donald Pringle played for East Africa in the inaugural World Cup, while his son Derek Pringle represented England in the 1987 and 1992 World Cups.
The best and worst bowling average
Pakistani batsman Mohammad Yousuf has the best bowling average (0.00) in World Cup history. Yousuf took the wicket of Zimbabwe's Christopher Mpofu with the very first ball he bowled in the 2007 World Cup. Contrastingly, New Zealand off-spinner John Bracewell has the worst average. Featuring in two World Cups (1983, 1987), Bracewell played seven matches, conceded 310 runs and picked up just 1 wicket, meaning he had an average of 310.
    — Cricbuzz