Which scientist wrote the Principia Mathematica in 1687?
Which social network was founded by Mark Zuckerberg in 2004?
Which chemical element has the symbol Fe?
Who founded Microsoft with Paul Allen?
What is the atomic number of carbon?
Which country's flag is a red circle on a white field?
Which US state has the city of Miami?
Which chemical element has the symbol W?
Which country is home to the Taj Mahal?
What is the capital city of Kazakhstan?
How many days are in a leap year?
Which chemical element has the symbol Pb?
Which country is home to the Eiffel Tower?
What is the capital city of Morocco?
Which chemical element has the symbol Cu?
Which planet in the Solar System is the largest?
Which planet in the Solar System is known as the Red Planet?
What is the capital city of Canada?
What is the capital city of Switzerland?
Which South Korean artist performs 'Gangnam Style', the first YouTube video to reach one billion views?
The phrase 'the cake is a lie' originates from which video game?
What is the name of the cat in the 'Keyboard Cat' video?
In what year was the first video uploaded to YouTube?
