In what year did Yang Liwei become China's first astronaut in space? Answer with the four-digit year only.
What is the IATA code of Dubai International Airport? Answer with the three-letter code only.
What is the SI base unit of thermodynamic temperature? Answer with the unit name only, in lowercase.
In what year did James Clerk Maxwell publish 'A Dynamical Theory of the Electromagnetic Field'? Answer with the four-digit year only.
How many dwarf planets does the International Astronomical Union officially recognize? Answer with the whole number only.
In what year did Isaac Newton publish Opticks? Answer with the four-digit year only.
In what year did Paul Dirac publish his relativistic equation for the electron? Answer with the four-digit year only.
What is the largest country in the world by area? Answer with the country name only.
In what year was Zarya, the first module of the International Space Station, launched? Answer with the four-digit year only.
What is the capital of Pakistan? Answer with the city name only.
How many engines did the McDonnell Douglas DC-10 have? Answer with the whole number only.
What is the two-character IATA code of Etihad Airways? Answer with the two-character code only.
In what year did Apollo 13 suffer its oxygen tank explosion? Answer with the four-digit year only.
