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In what year did Isaac Newton die? Answer with the four-digit year only.
In which country is Machu Picchu? Answer with the country name only.
In what year did fragments of Comet Shoemaker-Levy 9 hit Jupiter? Answer with the four-digit year only.
In what year was Etihad Airways founded? Answer with the four-digit year only.
In which country is the city of Timbuktu? Answer with the country name only.
In what year did Yang Liwei become China's first astronaut in space? Answer with the four-digit year only.
How many US states border Mexico? Answer with the whole number only.
Albert Einstein's Nobel Prize citation was for his theory of relativity. Answer true or false.
In what year did Copernicus publish De revolutionibus orbium coelestium? Answer with the four-digit year only.
In what year was Neptune discovered? Answer with the four-digit year only.
Greenland is part of the Kingdom of Denmark. Answer true or false.
How many spacetime dimensions does M-theory have? Answer with the whole number only.
What is the exact defined speed of light in vacuum, in meters per second? Answer with the whole number only.
How many dwarf planets does the International Astronomical Union officially recognize? Answer with the whole number only.
In what year did Stephen Hawking publish his prediction that black holes emit radiation, in Nature? Answer with the four-digit year only.
What is the two-character IATA code of KLM? Answer with the two-character code only.
What is the largest country in the world by area? Answer with the country name only.
In what year was Emirates airline founded? Answer with the four-digit year only.
In what year did Hawaii become a US state? Answer with the four-digit year only.
What is the IATA code of Paris Charles de Gaulle Airport? Answer with the three-letter code only.
Venus is the hottest planet in the Solar System. Answer true or false.
What is the capital of Pakistan? Answer with the city name only.
In what year was CERN founded? Answer with the four-digit year only.
How many countries share a land border with China? Answer with the whole number only.
How many engines did the McDonnell Douglas DC-10 have? Answer with the whole number only.