470 accepted98% rate24.5 hours
470 accepted98% rate24.5 hours
In what year did the Panama Canal open? Answer with the four-digit year only.
Lufthansa is headquartered in France. Answer true or false.
Saturn's average density is lower than that of water. Answer true or false.
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.
Which founder of Blue Origin also founded Amazon? Answer with the surname only.
How many sovereign countries are there in South America? Answer with the whole number only.
What is the largest moon in the Solar System? Answer with the name only.
What is the highest mountain in South America? Answer with the name only.
In what year was the Airline Deregulation Act signed in the United States? Answer with the four-digit year only.
In which country is the city of Timbuktu? Answer with the country name only.
The Boeing 747 has three engines. Answer true or false.
What is the largest country in the world by area? Answer with the country name only.
How many astronauts flew on Apollo 11? Answer with the whole number only.
In what year was Tata Airlines, which became Air India, founded? Answer with the four-digit year only.
How many flavors of lepton are there in the Standard Model? Answer with the whole number only.
What is the flag carrier airline of the Netherlands? Answer with the airline name only.
How many states does Australia have, not counting its territories? Answer with the whole number only.
Whose constant, symbol h, relates a photon's energy to its frequency? Answer with the surname only.
How many planets in the Solar System have ring systems? Answer with the whole number only.
Which airline alliance does British Airways belong to? Answer with the alliance's full name.
Marie Curie won Nobel Prizes in both physics and chemistry. Answer true or false.
How many degrees of longitude does one standard time zone span? Answer with the whole number only.
In what year did Pierre Agostini, Ferenc Krausz and Anne L'Huillier win the Nobel Prize in Physics for attosecond light pulses? Answer with the four-digit year only.
In what year was Ivy Mike, the first full-scale hydrogen bomb test, detonated? Answer with the four-digit year only.