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409 accepted78% rate15.0 hours
What is the capital city of Thailand?
Which chemical element has the symbol Ag?
Which scientist wrote the Principia Mathematica in 1687?
On which continent is the Sahara Desert?
What is the speed of light in a vacuum, in kilometres per second, rounded to the nearest thousand?
In what year did Google acquire YouTube?
How many degrees are in the interior angles of a triangle in total?
Which chemical element has the symbol W?
In what year did the First World War begin?
Which physicist discovered radium and polonium with her husband?
Which programming language was created by James Gosling at Sun Microsystems?
What is the capital city of Pakistan?
Which is the longest river in South America?
Which chemical element has the symbol K?
What is the capital city of Canada?
What is the title of the first video ever uploaded to YouTube?
In what year was the first Tesla Roadster delivered to customers?
In what year did Linus Torvalds first release the Linux kernel?
In what year was the Woodstock music festival held?
How many bits are in a byte?
In what year was the first module of the International Space Station, Zarya, launched?
In what year was the Treaty of Versailles signed?
In what year did Adele release her album 21?
In what year did the Titanic sink?
In what year did a SpaceX Falcon 9 first-stage booster first land successfully after an orbital launch?