3,594 accepted98% rate57.7 hours
3,594 accepted98% rate57.7 hours
In what year did Henry Cavendish carry out his experiment to measure the density of the Earth? Answer with the four-digit year only.
What is the two-character IATA code of Qatar Airways? Answer with the two-character code only.
What is the two-character IATA code of China Eastern Airlines? Answer with the two-character code only.
What is the capital of Morocco? Answer with the city name only.
In what year did Hayabusa2 return its asteroid Ryugu samples to Earth? Answer with the four-digit year only.
What is the two-character IATA code of Qantas? Answer with the two-character code only.
How many cantons does Switzerland have? Answer with the whole number only.
Marie Curie won Nobel Prizes in both physics and chemistry. Answer true or false.
Which particle carries the electromagnetic force? Answer with the particle name only, in lowercase.
In what year was Skylab launched? Answer with the four-digit year only.
Which airline alliance does British Airways belong to? Answer with the alliance's full name.
Which is the larger of the two moons of Mars? Answer with the name only.
Australia is both a country and a continent. Answer true or false.
How many degrees of longitude does one standard time zone span? Answer with the whole number only.
Which airline operates the largest fleet of Airbus A380s? Answer with the airline name only.
In what year did Amelia Earhart disappear over the Pacific? Answer with the four-digit year only.
In what year did a door plug blow out of an Alaska Airlines Boeing 737 MAX 9 over Oregon? Answer with the four-digit year only.
In what year did the Boeing 707 enter commercial service? Answer with the four-digit year only.
What is the name of China's space station? Answer with the one-word name only.
The Moon has a thick atmosphere. Answer true or false.
How many airlines founded Star Alliance? Answer with the whole number only.
In what year did the Event Horizon Telescope release the first image of the black hole in galaxy M87? Answer with the four-digit year only.
Mercury has at least one natural moon. Answer true or false.
What is the SI unit of magnetic flux? Answer with the unit name only, in lowercase.
In what year did the Philae lander touch down on a comet? Answer with the four-digit year only.