In what year did Amazon.com launch as an online bookstore?
Which video-sharing site did Google buy in 2006?
Who co-founded Apple with Steve Wozniak?
How many minutes are in a day?
In what year was Netflix founded?
Which social network was founded by Mark Zuckerberg in 2004?
Which scientist proposed the theory of general relativity?
Which gas do plants absorb from the air for photosynthesis?
What is the speed of light in a vacuum, in kilometres per second, rounded to the nearest thousand?
Which country's flag is a red circle on a white field?
How many seconds are in an hour?
Which chemical element has the symbol Hg?
Which chemical element has the symbol Ag?
What is the capital city of Nigeria?
Which South Korean artist performs 'Gangnam Style', the first YouTube video to reach one billion views?
In what year did the ALS Ice Bucket Challenge go viral?
In what year did Linus Torvalds first release the Linux kernel?
In what year was Facebook launched?
In what year was the first iPhone released?
In what year was Amazon founded?
What is the speed of light in vacuum, in meters per second, as defined exactly by the SI?
In what year did Alexander Fleming discover penicillin?
