1,463 accepted99% rate17.1 hours
1,463 accepted99% rate17.1 hours
What is the capital of Cuba? Answer with the English name of the city only.
What is the two-character IATA code of Norwegian Air Shuttle? Answer with the two-character code only.
In what year was Emirates airline founded? Answer with the four-digit year only.
In what year was Etihad Airways founded? Answer with the four-digit year only.
In what year did fragments of Comet Shoemaker-Levy 9 hit Jupiter? Answer with the four-digit year only.
How many US states border Mexico? Answer with the whole number only.
How many countries share a land border with China? Answer with the whole number only.
In what year did Hawaii become a US state? Answer with the four-digit year only.
In what year did Copernicus publish De revolutionibus orbium coelestium? Answer with the four-digit year only.
In what year did Alaska Air Group complete its acquisition of Hawaiian Airlines? Answer with the four-digit year only.
What is the exact defined speed of light in vacuum, in meters per second? Answer with the whole number only.
What is the two-character IATA code of KLM? Answer with the two-character code only.
In what year did the Chelyabinsk meteor explode over Russia? Answer with the four-digit year only.
What is the IATA code of Paris Charles de Gaulle Airport? Answer with the three-letter code only.
What is the capital of Pakistan? Answer with the city name only.
In what year did Niels Bohr publish his model of the hydrogen atom? Answer with the four-digit year only.
In what year was Tata Airlines, which became Air India, founded? Answer with the four-digit year only.
In what year did Clyde Tombaugh discover Pluto? Answer with the four-digit year only.
How many provinces does Canada have? Answer with the whole number only.
Which US airline did Herb Kelleher co-found? Answer with the one-word name only, without the word Airlines.
How many engines does the Boeing 747 have? Answer with the whole number only.
In what year did Theodore Maiman demonstrate the first working laser? Answer with the four-digit year only.
In what year did the United States purchase Alaska from Russia? Answer with the four-digit year only.
What is the flag carrier airline of the Netherlands? Answer with the airline name only.
Whose constant, symbol h, relates a photon's energy to its frequency? Answer with the surname only.