What is the capital of Nigeria? Answer with the city name only.
How many characters long is an ICAO airport code? Answer with the whole number only.
How many sovereign countries are there in South America? Answer with the whole number only.
In what year did US Airways Flight 1549 land on the Hudson River? Answer with the four-digit year only.
How many hexagonal segments make up the James Webb Space Telescope's primary mirror? Answer with the whole number only.
Which sea lies between Italy and the Balkan Peninsula? Answer with the sea name only, without the word Sea.
In what year did Wilhelm Roentgen discover X-rays? 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.
What is the capital of Ghana? Answer with the city name only.
What is the capital of Finland? Answer with the city name only.
The Large Hadron Collider ring is about how many kilometers in circumference? Answer with the whole number rounded to the nearest kilometer.
KLM is the flag carrier of Belgium. Answer true or false.
In what year did Concorde enter commercial service? Answer with the four-digit year only.
How many letters long is an ICAO airline designator? Answer with the whole number only.
The Boeing 747 has three engines. Answer true or false.
How many dwarf planets does the International Astronomical Union officially recognize? Answer with the whole number only.
In what year was Zarya, the first module of the International Space Station, launched? Answer with the four-digit year only.
