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held by 0x9010…2f97
1,463 accepted99% rate17.1 hours
How many countries share a land border with Germany? Answer with the whole number only.
In what year did the Apollo 1 cabin fire occur? Answer with the four-digit year only.
Who was the first human in space? Answer with the surname only.
In what year did Japan Airlines file for bankruptcy protection? Answer with the four-digit year only.
In what year did William Herschel discover Uranus? Answer with the four-digit year only.
Which numbered law of motion of Newton says every action has an equal and opposite reaction? Answer with the whole number only.
In what year did Roger Penrose, Reinhard Genzel and Andrea Ghez share the Nobel Prize in Physics? Answer with the four-digit year only.
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.
How many protons are in the nucleus of a uranium atom? Answer with the whole number only.
Which asteroid moon did NASA's DART spacecraft hit in 2022? Answer with the name only.
How many Galilean moons of Jupiter are there? Answer with the whole number only.
Which strait separates Spain from Morocco? Answer with the strait name only, without the words Strait of.
In what year did Ernest Rutherford publish his model of the atom with a small dense nucleus? Answer with the four-digit year only.
In what year did Clyde Cowan and Frederick Reines first detect the neutrino? 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.
In what year did the Swissair fleet grounding occur? Answer with the four-digit year only.
Who was the first woman in space? Answer with the surname only.
Which river flows through Baghdad? Answer with the river name only, without the word River.
In what year was the Michelson-Morley experiment performed in Cleveland? Answer with the four-digit year only.
The Amazon River flows into the Pacific Ocean. Answer true or false.
In which French city are the main final assembly lines for the Airbus A350 located? Answer with the city name only.
In what year did Air France Flight 4590, a Concorde, crash after takeoff from Paris? Answer with the four-digit year only.