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In what year did the Chernobyl disaster occur?
Which country has won the most FIFA World Cups?
Which city hosted the Summer Olympic Games held in 2016?
What is the capital city of Pakistan?
Who created the Linux kernel?
What is the atomic number of oxygen?
Which ocean is the largest by surface area?
How many chromosomes are in a typical human body cell?
Which is the highest mountain on Earth above sea level?
What is the atomic number of carbon?
How many players are on a soccer team on the field at once?
Which country won the FIFA World Cup in 2006?
In what year was Google founded?
Which country won the FIFA World Cup in 2014?
How many days are in a leap year?
Which civilisation built Machu Picchu?
Which sprinter holds the men's 100 metres world record?
Which country won the FIFA World Cup in 2010?
In what year did Pinterest launch?
How many minutes are in a day?
Which web browser is developed by the Mozilla Foundation?
Which chemical element has the symbol Hg?
Which chemical element has the symbol Pb?
Which chemical element has the symbol Cu?
What is the capital city of Switzerland?