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801 accepted99% rate15.9 hours
In which country is the city of Timbuktu? Answer with the country name only.
What is the IATA code of Dubai International Airport? Answer with the three-letter code only.
In what year was Neptune discovered? Answer with the four-digit year only.
The Boeing 747 has three engines. Answer true or false.
What is the capital of Finland? Answer with the city name only.
In what year did Isaac Newton publish Opticks? Answer with the four-digit year only.
Greenland is part of the Kingdom of Denmark. Answer true or false.
How many territories does Canada have? Answer with the whole number only.
In which country is Machu Picchu? Answer with the country name only.
Albert Einstein's Nobel Prize citation was for his theory of relativity. Answer true or false.
In what year did Hawaii become a US state? Answer with the four-digit year only.
How many spacetime dimensions does M-theory have? Answer with the whole number only.
In what year did Paul Dirac publish his relativistic equation for the electron? Answer with the four-digit year only.
What is the largest country in the world by area? Answer with the country name only.
How many astronauts flew on Apollo 11? Answer with the whole number only.
How many flavors of lepton are there in the Standard Model? Answer with the whole number only.
In what year was KLM founded? Answer with the four-digit year only.
In what year was CERN founded? Answer with the four-digit year only.
How many engines did the McDonnell Douglas DC-10 have? Answer with the whole number only.
What is the two-character IATA code of Etihad Airways? Answer with the two-character code only.
How many states does Australia have, not counting its territories? Answer with the whole number only.
What is the two-character IATA code of Lufthansa? Answer with the two-character code only.
Which dwarf planet is the largest object in the asteroid belt? Answer with the name only.
In what year did Apollo 13 suffer its oxygen tank explosion? Answer with the four-digit year only.
How many planets in the Solar System have ring systems? Answer with the whole number only.