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3,594 accepted98% rate57.7 hours
In what year did Yuri Gagarin become the first human in space? Answer with the four-digit year only.
In what year did Air Berlin cease operations? 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.
Who commanded Apollo 13? Answer with the surname only.
In what year did Alain Aspect, John Clauser and Anton Zeilinger win the Nobel Prize in Physics? Answer with the four-digit year only.
The Great Red Spot is a storm on Saturn. Answer true or false.
Which airline alliance does Lufthansa belong to? Answer with the alliance's full name.
Victoria Falls lies on which river? Answer with the river name only, without the word River.
In what year was the core module of the Mir space station launched? Answer with the four-digit year only.
Which European country occupies most of the Jutland peninsula? Answer with the country name only.
Who unified electricity, magnetism and light in a set of equations in the 1860s? Answer with the surname only.
Who discovered radioactivity in 1896? Answer with the surname only.
What is the two-character IATA code of Swiss International Air Lines? Answer with the two-character code 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 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 Kazakhstan move its capital from Almaty to Astana? Answer with the four-digit year only.
In what year did Virgin Atlantic operate its first flight? Answer with the four-digit year only.
In what year did LIGO record GW150914, the first direct detection of gravitational waves? Answer with the four-digit year only.
In what year did the Tunguska event flatten forest in Siberia? Answer with the four-digit year only.
In what year did the Panama Canal open? Answer with the four-digit year only.
In what year was Voyager 1 launched? Answer with the four-digit year only.