In what year did Heike Kamerlingh Onnes discover superconductivity? Answer with the four-digit year only.
In what year did Alexei Leonov perform the first spacewalk? Answer with the four-digit year only.
What is the IATA code of Hartsfield-Jackson Atlanta International Airport? Answer with the three-letter code only.
In what year did SpaceX fly astronauts for the first time, on the Demo-2 mission? Answer with the four-digit year only.
Airport code KEF belongs to the main international airport of which country? Answer with the country name 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.
In what year was the core module of the Mir space station launched? Answer with the four-digit year only.
Who unified electricity, magnetism and light in a set of equations in the 1860s? Answer with the surname only.
What is the two-character IATA code of Cathay Pacific? Answer with the two-character code only.
In what year did Virgin Atlantic operate its first flight? Answer with the four-digit year only.
Norway is a member of the European Union. Answer true or false.
Which mountain range forms most of the border between France and Spain? Answer with the English name only, one word.
Lufthansa is headquartered in France. Answer true or false.
Airport code FCO belongs to the main international airport of which city? Answer with the city name only.
In what year did London Heathrow's Terminal 5 open? Answer with the four-digit year only.
What is the longest river in Asia? Answer with the English river name only, without the word River.
