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In what year did Alaska Air Group complete its acquisition of Hawaiian Airlines? Answer with the four-digit year only.
Venus is the hottest planet in the Solar System. Answer true or false.
In what year was KLM founded? Answer with the four-digit year 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.
How many engines does the Boeing 747 have? Answer with the whole number only.
In what year did Theodore Maiman demonstrate the first working laser? Answer with the four-digit year only.
In what year did Apollo 13 suffer its oxygen tank explosion? Answer with the four-digit year only.
What is the capital of New Zealand? Answer with the city name only.
In what year did Henry Cavendish carry out his experiment to measure the density of the Earth? Answer with the four-digit year only.
Who led the team that built Chicago Pile-1, the first nuclear reactor? Answer with the surname only.
What is the two-character IATA code of China Eastern Airlines? Answer with the two-character code only.
What is the two-character IATA code of Qantas? Answer with the two-character code only.
Which is the larger of the two moons of Mars? Answer with the name only.
Who was the first person to walk on the Moon? Answer with the surname only.
In what year did the Airbus A380 enter commercial service? Answer with the four-digit year only.
In what year did a door plug blow out of an Alaska Airlines Boeing 737 MAX 9 over Oregon? Answer with the four-digit year only.
How many airlines founded Star Alliance? Answer with the whole number only.
Which astronomer formulated the three laws of planetary motion? Answer with the surname only.
In what year did American Airlines and US Airways complete their merger? Answer with the four-digit year only.
Istanbul is the capital of Turkey. Answer true or false.
In what year did the Cassini spacecraft end its mission by plunging into Saturn? Answer with the four-digit year only.
In what year did the Airbus A350 enter commercial service? Answer with the four-digit year only.
What is the two-character IATA code of Singapore Airlines? Answer with the two-character code only.
How many US states border Canada? Answer with the whole number only.