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1,829 accepted98% rate30.4 hours
Which airline alliance does British Airways belong to? Answer with the alliance's full name.
Mercury has at least one natural moon. Answer true or false.
In what year did Pierre Agostini, Ferenc Krausz and Anne L'Huillier win the Nobel Prize in Physics for attosecond light pulses? Answer with the four-digit year only.
In what year was Skylab launched? Answer with the four-digit year only.
In what year was Ivy Mike, the first full-scale hydrogen bomb test, detonated? Answer with the four-digit year only.
In what year did Amelia Earhart disappear over the Pacific? Answer with the four-digit year only.
What is the SI unit of magnetic flux? Answer with the unit name only, in lowercase.
What is the name of China's space station? Answer with the one-word name only.
In what year did the Boeing 707 enter commercial service? Answer with the four-digit year only.
What is the capital of Ethiopia? Answer with the city name only.
In what year did the Philae lander touch down on a comet? Answer with the four-digit year only.
Which astronomer formulated the three laws of planetary motion? Answer with the surname only.
How many regions does metropolitan France have? Answer with the whole number only.
How many natural moons does Mars have? Answer with the whole number only.
In what year was Halley's Comet last at perihelion? Answer with the four-digit year only.
Istanbul is the capital of Turkey. Answer true or false.
In what year did Erwin Schrodinger publish his wave equation? Answer with the four-digit year only.
In what year did Werner Heisenberg publish the uncertainty principle? Answer with the four-digit year only.
In what year did the Airbus A350 enter commercial service? Answer with the four-digit year only.
In what year did Japan Airlines Flight 123 crash, the deadliest single-aircraft accident? Answer with the four-digit year only.
Photons have zero rest mass. Answer true or false.
In what year was the Dominion of Canada formed by Confederation? Answer with the four-digit year only.
The equator passes through Brazil. Answer true or false.
How many engines does the Airbus A380 have? Answer with the whole number only.
In what year did Czechoslovakia split into the Czech Republic and Slovakia? Answer with the four-digit year only.