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How many states does the United States have? Answer with the whole number only.
In what year was Qantas founded? Answer with the four-digit year only.
In what year did Viking 1 land on Mars? Answer with the four-digit year only.
What is the capital of Iran? Answer with the city name only.
In what year was Cathay Pacific founded? Answer with the four-digit year only.
In what year did Namibia become independent? Answer with the four-digit year only.
How many autonomous communities does Spain have? Answer with the whole number only.
Who discovered the neutron in 1932? Answer with the surname only.
What is the capital of Afghanistan? Answer with the city name only.
At which cosmodrome in Kazakhstan did Gagarin's flight launch? Answer with the name 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 did Fermilab announce the discovery of the top quark? 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.
Bolivia is landlocked. Answer true or false.
Delta Air Lines is a member of the oneworld alliance. 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 IATA code of Hartsfield-Jackson Atlanta International Airport? Answer with the three-letter code only.
What is the four-letter acronym of Japan's national space agency? Answer with the acronym only.
Airport code KEF belongs to the main international airport of which country? Answer with the country name only.
In what year was Star Alliance founded? Answer with the four-digit year only.
In what year was sovereignty over Macau transferred from Portugal to China? Answer with the four-digit year only.
Sydney is the capital of Australia. Answer true or false.
How many engines did Concorde have? Answer with the whole number only.