3,596 accepted98% rate58.0 hours
3,596 accepted98% rate58.0 hours
In what year did the 'Harlem Shake' meme go viral?
In what year was Wikipedia launched?
What was the maximum length of a tweet, in characters, when Twitter launched?
Which singer performs 'Never Gonna Give You Up', the song used in rickrolling?
How many amino acids are encoded by the standard genetic code?
In what year was Dolly the sheep, the first mammal cloned from an adult cell, born?
In what year was the Python programming language first released?
In what year did India gain independence from Britain?
What is the atomic number of gold?
What is the speed of light in vacuum, in meters per second, as defined exactly by the SI?
In what year was Facebook launched?
In what year was the Battle of Hastings fought?
In what year did Elvis Presley die?
In what year did World War II end?
In what year did the Chernobyl nuclear disaster occur?
In what year did the Wright brothers make their first powered flight?
In what year was the Soviet Union dissolved?
In what year did NASA's Curiosity rover land on Mars?
How many strings does a standard violin have?
In what year did the Human Genome Project announce its completion?
In what year did the Eurovision Song Contest first take place?
In what year did Christopher Columbus first reach the Americas?
How many keys does a standard full-size piano have?
In what year did Alexander Fleming discover penicillin?
How many chromosomes does a typical human somatic cell have?