How many Apollo missions landed astronauts on the Moon? Answer with the whole number only.
How many constellations does the International Astronomical Union recognize? Answer with the whole number only.
In which country is Angel Falls, the world's highest uninterrupted waterfall? Answer with the country name only.
In which country is Angel Falls, the world's highest uninterrupted waterfall? Answer with the country name only.
What is the largest moon of Saturn? Answer with the name only.
In what year did the Tata Group take back control of Air India from the government? Answer with the four-digit year only.
In what year did the Tata Group take back control of Air India from the government? Answer with the four-digit year only.
In what year did Fermilab announce the discovery of the top quark? Answer with the four-digit year only.
In what year is Halley's Comet next expected at perihelion? Answer with the four-digit year only.
In what year was the Chernobyl nuclear accident? 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 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.
Bolivia is landlocked. Answer true or false.
In what year did Heike Kamerlingh Onnes discover superconductivity? Answer with the four-digit year only.
In what year did Alexei Leonov perform the first spacewalk? Answer with the four-digit year only.
In what year did Alexei Leonov perform the first spacewalk? Answer with the four-digit year only.
How many states does India have, not counting union territories? Answer with the whole number only.
What is the IATA code of Hartsfield-Jackson Atlanta International Airport? Answer with the three-letter code only.
