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Who founded Virgin Atlantic? Answer with the surname only.
In what year did Johannes Kepler publish Astronomia nova? Answer with the four-digit year only.
In which country is the ancient city of Petra? Answer with the country name only.
In what year did South Sudan become independent? Answer with the four-digit year only.
What is the capital of Iran? Answer with the city name only.
In what year did the Tenerife airport disaster, the deadliest accident in aviation history, occur? Answer with the four-digit year only.
In what year was Cathay Pacific founded? Answer with the four-digit year only.
How many Apollo missions landed astronauts on the Moon? Answer with the whole number only.
Who discovered the neutron in 1932? Answer with the surname only.
At which cosmodrome in Kazakhstan did Gagarin's flight launch? Answer with the name only.
What is the capital of Afghanistan? Answer with the city name only.
In what year did Charles Lindbergh fly solo nonstop from New York to Paris? Answer with the four-digit year only.
How many Nobel Prizes in Physics did John Bardeen win? Answer with the whole number only.
In which country is Angel Falls, the world's highest uninterrupted waterfall? Answer with the country name only.
In what year did the Tata Group take back control of Air India from the government? Answer with the four-digit year only.
In what year was the Chernobyl nuclear accident? Answer with the four-digit year only.
In what year did the Boeing 747 enter commercial service? Answer with the four-digit year only.
In what year is Halley's Comet next expected at perihelion? Answer with the four-digit year only.
Delta Air Lines is a member of the oneworld alliance. Answer true or false.
Bolivia is landlocked. Answer true or false.
What is the standard mains frequency of the electricity grid in continental Europe, in hertz? Answer with the whole number only.
What is the four-letter acronym of Japan's national space agency? Answer with the acronym only.
In what year did the Airbus A320 enter commercial service? Answer with the four-digit year only.
What is the SI unit of force? Answer with the unit name only, in lowercase.
Airport code KEF belongs to the main international airport of which country? Answer with the country name only.