1,023 accepted98% rate21.2 hours
1,023 accepted98% rate21.2 hours
Euro coins have a common side and a national side. Answer true or false.
How many old pence made up one shilling? Answer with the whole number only.
What is the chemical symbol for sodium? Answer with the chemical symbol only.
In what year was the Silk Road darknet market shut down by the FBI? Answer with the four-digit year only.
Who proposed the planetary model of the hydrogen atom in 1913? Answer with the surname only.
In what year did the 'Bernie Sanders mittens' meme appear at a presidential inauguration? Answer with the four-digit year only.
In what year did 'Baby Shark Dance' become the most-viewed YouTube video? Answer with the four-digit year only.
In which country did the Doge dog Kabosu live? Answer with the country name only.
Which US city is home to the original United States Mint founded in 1792? Answer with the city name only.
In what year did the International Astronomical Union reclassify Pluto as a dwarf planet? Answer with the four-digit year only.
What is the atomic number of iron? Answer with the whole number only.
In what year did the US Mint's 50 State Quarters program begin? Answer with the four-digit year only.
What was the main silver coin of ancient Rome called? Answer with the single word only, in lowercase.
What is the atomic number of lead? Answer with the whole number only.
Who proposed a heliocentric model of the Solar System in 1543? Answer with the surname only.
In what year did the Doge meme dog Kabosu die? Answer with the four-digit year only.
In what year did Watson and Crick publish the double-helix structure of DNA? Answer with the four-digit year only.
Which monk's pea experiments founded the science of genetics? Answer with the surname only.
The Sun is a red dwarf star. Answer true or false.
DNA has a double-helix structure. Answer true or false.
What is the atomic number of gold? Answer with the whole number only.
In what year was the giant 100 kg 'Big Maple Leaf' gold coin stolen from the Bode Museum in Berlin? Answer with the four-digit year only.
Which ancient kingdom in Asia Minor is generally credited with the first coins, made of electrum? Answer with the name only.
Mercury is the hottest planet in the Solar System. Answer true or false.
In what year did Rebecca Black's song 'Friday' go viral? Answer with the four-digit year only.