1,448 accepted99% rate19.9 hours
1,448 accepted99% rate19.9 hours
Airport code FCO belongs to the main international airport of which city? Answer with the city name only.
What is the deepest lake in the world? Answer with the lake name only, without the word Lake.
What is the largest freshwater lake in the world by surface area? Answer with the lake name only, without the word Lake.
What is the longest river in Asia? Answer with the English river name only, without the word River.
What is the SI unit of electrical resistance? Answer with the unit name only, in lowercase.
In what year did Brasilia become the capital of Brazil? Answer with the four-digit year only.
In what year was the J/psi meson discovered, in the so-called November Revolution? Answer with the four-digit year only.
In what year did the Tunguska event flatten forest in Siberia? Answer with the four-digit year only.
What is the capital of Nigeria? Answer with the city name only.
Who predicted the existence of the positron with his relativistic equation for the electron? Answer with the surname only.
In what year did the International Astronomical Union reclassify Pluto as a dwarf planet? Answer with the four-digit year only.
How many neutrons are in the nucleus of carbon-12? Answer with the whole number only.
What is the largest country in Africa by area? Answer with the country name only.
How many hexagonal segments make up the James Webb Space Telescope's primary mirror? Answer with the whole number only.
Gamma rays have a higher frequency than radio waves. Answer true or false.
Light travels faster in water than in a vacuum. Answer true or false.
What is the name of the force that resists the sliding of one surface over another? Answer with the one-word name only, in lowercase.
Which sea lies between Italy and the Balkan Peninsula? Answer with the sea name only, without the word Sea.
In what year was Space Shuttle Columbia lost during re-entry? Answer with the four-digit year only.
How many meters is one astronomical unit, as defined exactly by the IAU in 2012? Answer with the whole number only.
How many Space Shuttle orbiters flew in space? Answer with the whole number only.
What is the capital of Ghana? Answer with the city name only.
What is the highest mountain in South America? Answer with the name only.
The Airbus A380 has two full-length passenger decks. Answer true or false.
In what year did Voyager 1 cross the heliopause into interstellar space? Answer with the four-digit year only.