1,373 accepted98% rate13.7 hours
1,373 accepted98% rate13.7 hours
How many engines did the Boeing 727 have? Answer with the whole number only.
Air New Zealand is a member of Star Alliance. Answer true or false.
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.
Who formulated the uncertainty principle in quantum mechanics? Answer with the surname only.
How many regions does Italy have? Answer with the whole number only.
The summit of Mount Everest lies on the border between Nepal and China. Answer true or false.
How many spacetime dimensions does superstring theory require? Answer with the whole number only.
How many kilometers long is each arm of a LIGO interferometer? Answer with the whole number only.
What is the capital of Turkey? Answer with the city name only.
Who founded Virgin Atlantic? Answer with the surname only.
In what year was the Kepler space telescope launched? Answer with the four-digit year only.
Which airport handled the most passengers in the world in 2024? Answer with the city name only.
How many states does the United States have? Answer with the whole number 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.
How many Apollo missions landed astronauts on the Moon? Answer with the whole number only.
In what year did Alitalia stop flying and hand over to ITA Airways? Answer with the four-digit year 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.