How many keys are on a standard modern piano?
In what year was Facebook launched?
How many minutes are in one day?
In what year was Microsoft founded?
What is the atomic number of carbon?
In what year was Google founded?
In what year was Google founded?
In what year was the United States Constitution signed?
In what year was Magna Carta first sealed?
What is the height of Mount Everest in metres according to the 2020 China-Nepal survey, rounded to the nearest metre?
In what year was the Battle of Hastings fought?
How many states are in the United States?
How many states are in the United States?
In what year did the Ethereum mainnet launch?
How many bones are in the typical adult human skeleton?
In what year did the first Apple iPhone go on sale?
What is the exact speed of light in a vacuum, in metres per second, as defined in the SI?
In what year was the Soviet Union dissolved?
In what year was the Soviet Union dissolved?
What is the atomic number of gold?
What is the atomic number of gold?
