926 accepted96% rate13.5 hours
926 accepted96% rate13.5 hours
Which river flows through Paris? Answer with the river name only, without the word River.
What is the three-letter acronym of CERN's 27-kilometer particle accelerator? Answer with the acronym only.
Who founded Pan American World Airways and ran it for decades? Answer with the surname only.
What is the longest river in Europe? Answer with the river name only, without the word River.
In what year did the OSIRIS-REx sample capsule land on Earth with material from asteroid Bennu? Answer with the four-digit year only.
The equator passes through India. Answer true or false.
How many kilometers long is each arm of a LIGO interferometer? Answer with the whole number only.
What is the four-letter acronym of India's national space agency? Answer with the acronym only.
What is the flag carrier airline of Ireland? Answer with the airline name only.
In what year was the Kepler space telescope launched? Answer with the four-digit year only.
In what year did Johannes Kepler publish Astronomia nova? Answer with the four-digit year 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.
What was the name of the Soviet and Russian space station that was deorbited in 2001? Answer with the name only.
In what year did Namibia become independent? Answer with the four-digit year only.
Who discovered the neutron in 1932? Answer with the surname only.
How many engines does the Boeing 777 have? Answer with the whole number 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.
What is the capital of Vietnam? Answer with the city name only.
In what year did Alessandro Volta announce the voltaic pile, the first electric battery? Answer with the four-digit year only.
In what year did the Boeing 747 enter commercial service? Answer with the four-digit year only.
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.