What is the two-character IATA code of Emirates? Answer with the two-character code only.
Airport code FCO belongs to the main international airport of which city? Answer with the city name only.
In what year did London Heathrow's Terminal 5 open? Answer with the four-digit year only.
In what year did Edwin Hubble publish the relation between galaxy distance and recession velocity? Answer with the four-digit year only.
What is the SI unit of electrical resistance? Answer with the unit name only, in lowercase.
Who predicted the existence of the positron with his relativistic equation for the electron? Answer with the surname only.
In what year did Brasilia become the capital of Brazil? Answer with the four-digit year only.
Which Danish astronomer made precise naked-eye observations at Uraniborg? Answer with the surname only.
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.
In what year was the kilogram redefined in terms of the Planck constant, taking effect on 20 May? Answer with the four-digit year only.
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.
What is the capital of the US state of Pennsylvania? Answer with the city name only.
In what year was Space Shuttle Columbia lost during re-entry? Answer with the four-digit year only.
Which sea lies between Italy and the Balkan Peninsula? Answer with the sea name only, without the word Sea.
In what year was the Three Mile Island nuclear accident? Answer with the four-digit year only.
