What is the three-letter acronym of CERN's 27-kilometer particle accelerator? Answer with the acronym only.
Who founded Pan American World Airways and ran it for decades? Answer with the surname only.
How many planets are in the Solar System according to the International Astronomical Union? Answer with the whole number only.
What is the longest river in Europe? Answer with the river name only, without the word River.
How many spacetime dimensions does superstring theory require? Answer with the whole number only.
What is the capital of Kenya? Answer with the city name only.
What is the four-letter acronym of India's national space agency? Answer with the acronym only.
In what year did Marie Curie win her Nobel Prize in Chemistry? Answer with the four-digit year only.
In what year did Johannes Kepler publish Astronomia nova? Answer with the four-digit year only.
Ryanair is headquartered in Ireland. Answer true or false.
In what year did the de Havilland Comet begin the world's first scheduled jet airliner service? Answer with the four-digit year only.
In what year did Alitalia stop flying and hand over to ITA Airways? Answer with the four-digit year only.
What is the capital of Vietnam? Answer with the city name only.
In what year is Halley's Comet next expected at perihelion? Answer with the four-digit year only.
In what year did the Boeing 747 enter commercial service? Answer with the four-digit year only.
In what year did Marie Curie win her first Nobel Prize, the one in physics? Answer with the four-digit year only.
In what year was Concorde retired from commercial service? Answer with the four-digit year only.
How many states does India have, not counting union territories? Answer with the whole number only.
Which airline alliance does Lufthansa belong to? Answer with the alliance's full name.