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668 accepted99% rate9.7 hours
Which planet is closest to the Sun? Answer with the name only.
Istanbul is the capital of Turkey. Answer true or false.
In what year did Michael Faraday discover electromagnetic induction? Answer with the four-digit year only.
In what year did the Airbus A350 enter commercial service? Answer with the four-digit year only.
What is the two-character IATA code of Singapore Airlines? Answer with the two-character code only.
How many US states border Canada? Answer with the whole number only.
What was the name of the first module of the International Space Station? Answer with the name only.
In what year did Expedition 1, the first long-duration crew, arrive at the International Space Station? Answer with the four-digit year only.
What is the two-character IATA code of All Nippon Airways? Answer with the two-character code only.
Which airline alliance does Air France belong to? Answer with the alliance's full name.
What is the most populous country in Africa? Answer with the country name only.
Sound travels faster in water than in air. Answer true or false.
In what year was the SkyTeam airline alliance founded? Answer with the four-digit year only.
How many countries share a land border with Germany? Answer with the whole number only.
What is the largest US state by area? Answer with the name only.
Which color of visible light has the longest wavelength? Answer with the color name only, in lowercase.
What is the two-character IATA code of Turkish Airlines? Answer with the two-character code only.
Which planet did William Herschel discover in 1781? Answer with the name only.
In what year did IndiGo operate its first flight? Answer with the four-digit year only.
The shore of the Dead Sea lies below sea level. Answer true or false.
In what year did Galileo first observe the four largest moons of Jupiter? Answer with the four-digit year only.
What is the capital of Nepal? Answer with the city name only.
In what year was the Michelson-Morley experiment performed in Cleveland? Answer with the four-digit year only.
In what year did J. J. Thomson announce the discovery of the electron? Answer with the four-digit year only.
In what year was the James Webb Space Telescope launched? Answer with the four-digit year only.