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In what year did Air Berlin cease operations? Answer with the four-digit year only.
In what year did Heike Kamerlingh Onnes discover superconductivity? Answer with the four-digit year only.
Sydney is the capital of Australia. Answer true or false.
In what year did Alain Aspect, John Clauser and Anton Zeilinger win the Nobel Prize in Physics? Answer with the four-digit year only.
How many engines did Concorde have? Answer with the whole number only.
Who commanded Apollo 13? Answer with the surname only.
In what year was sovereignty over Macau transferred from Portugal to China? Answer with the four-digit year only.
In what year was the core module of the Mir space station launched? Answer with the four-digit year only.
Victoria Falls lies on which river? Answer with the river name only, without the word River.
In what year did the Airbus A320 enter commercial service? Answer with the four-digit year only.
What is the standard mains frequency of the electricity grid in continental Europe, in hertz? Answer with the whole number only.
Who unified electricity, magnetism and light in a set of equations in the 1860s? Answer with the surname only.
Which European country occupies most of the Jutland peninsula? Answer with the country name only.
In what year was Star Alliance founded? Answer with the four-digit year only.
Who discovered radioactivity in 1896? Answer with the surname only.
What is the capital of Norway? Answer with the city name only.
What is the two-character IATA code of Cathay Pacific? Answer with the two-character code only.
What is the capital of Australia? Answer with the city name only.
The Great Red Spot is a storm on Saturn. Answer true or false.
In what year did Kazakhstan move its capital from Almaty to Astana? Answer with the four-digit year only.
The neutron carries a positive electric charge. Answer true or false.
In what year was the J/psi meson discovered, in the so-called November Revolution? Answer with the four-digit year 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.
In what year did NASA launch the uncrewed Artemis I mission? Answer with the four-digit year only.