1,145 accepted98% rate18.0 hours
1,145 accepted98% rate18.0 hours
What is the SI unit of energy? Answer with the unit name only, in lowercase.
Concorde cruised faster than the speed of sound. Answer true or false.
In what year was the Boeing 737 MAX grounded worldwide after two crashes? Answer with the four-digit year only.
What is the IATA code of Tokyo Narita International Airport? Answer with the three-letter code only.
How many member states does the European Union have, as of 2025? Answer with the whole number only.
In what year did the Channel Tunnel open? Answer with the four-digit year only.
What is the two-character IATA code of Air France? Answer with the two-character code only.
What is the height of Mount Kilimanjaro in meters, as usually cited? Answer with the whole number only.
Which planet did William Herschel discover in 1781? Answer with the name only.
In what year did Mars Pathfinder land on Mars with the Sojourner rover? Answer with the four-digit year only.
How many protons are in the nucleus of a uranium atom? Answer with the whole number only.
How many Galilean moons of Jupiter are there? Answer with the whole number only.
In what year did Carl Anderson discover the positron? Answer with the four-digit year only.
What is the capital of the US state of Washington? Answer with the city name only.
What is the standard mains frequency of the electricity grid in the United States, in hertz? Answer with the whole number only.
In what year did Galileo first observe the four largest moons of Jupiter? Answer with the four-digit year only.
In what year was sovereignty over Hong Kong transferred from the United Kingdom to China? Answer with the four-digit year only.
In what year did Georg Ohm publish the law relating voltage, current and resistance? Answer with the four-digit year only.
Which country entirely surrounds Lesotho? Answer with the country name only.
What is the two-character IATA code of Southwest Airlines? Answer with the two-character code only.
How many countries does the Danube flow through? Answer with the whole number only.
How many characters long is an IATA airport code? Answer with the whole number only.
In what year did Paul Dirac and Erwin Schrodinger share the Nobel Prize in Physics? Answer with the four-digit year only.
What is the atomic number of plutonium? Answer with the whole number only.
Since 2022, Boeing's global headquarters has been in which Virginia city? Answer with the city name only.