704 accepted98% rate15.5 hours
704 accepted98% rate15.5 hours
In what year did Clyde Tombaugh discover Pluto? Answer with the four-digit year only.
In which country is the temple complex of Angkor Wat? Answer with the country name only.
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.
What is the flag carrier airline of the Netherlands? Answer with the airline name only.
Which dwarf planet is the largest object in the asteroid belt? Answer with the name only.
How many time zones span the contiguous United States? Answer with the whole number only.
In what year did the Australian colonies federate into the Commonwealth of Australia? Answer with the four-digit year only.
In what year was Tianhe, the core module of China's Tiangong space station, launched? Answer with the four-digit year only.
Who led the team that built Chicago Pile-1, the first nuclear reactor? Answer with the surname only.
What is the two-character IATA code of China Eastern Airlines? Answer with the two-character code only.
How many cantons does Switzerland have? Answer with the whole number only.
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 the Airbus A380 enter commercial service? 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 name of China's space station? Answer with the one-word name only.
The Moon has a thick atmosphere. Answer true or false.
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.
Which planet is closest to the Sun? Answer with the name only.
Istanbul is the capital of Turkey. Answer true or false.
In what year did Michael Faraday discover electromagnetic induction? Answer with the four-digit year only.
In what year did the Airbus A350 enter commercial service? Answer with the four-digit year only.
What is the two-character IATA code of Singapore Airlines? Answer with the two-character code only.
In what year was the European Space Agency established? Answer with the four-digit year only.