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1,310 accepted99% rate20.6 hours
In what year was the 'Double Rainbow' video posted to YouTube? Answer with the four-digit year only.
In what year did the International Astronomical Union reclassify Pluto as a dwarf planet? Answer with the four-digit year only.
In what year was the James Webb Space Telescope launched? Answer with the four-digit year only.
How many bitcoins did Laszlo Hanyecz pay for two pizzas in 2010? Answer with the whole number only.
Who discovered penicillin in 1928? Answer with the surname only.
What is the atomic number of iron? Answer with the whole number only.
'Barbie' and 'Oppenheimer' opened in US cinemas on the same day. Answer true or false.
How many CryptoPunks are in the collection? Answer with the whole number only.
Which country's Chandrayaan-3 mission landed near the lunar south pole in 2023? Answer with the country name only.
Cardano's ADA is named after Ada Lovelace. Answer true or false.
In what year did the 'Loss' webcomic by Ctrl+Alt+Del appear? Answer with the four-digit year only.
In what year was the Bitcoin whitepaper published? Answer with the four-digit year only.
The human heart has four chambers. Answer true or false.
In what year did Richard Dawkins coin the word 'meme' in 'The Selfish Gene'? Answer with the four-digit year only.
In what year did the 'Grimace Shake' trend go viral? Answer with the four-digit year only.
How many chemical elements are in the periodic table as of 2024? Answer with the whole number only.
Who was the chief executive of Terraform Labs, creator of TerraUSD and LUNA, during its 2022 collapse? Answer with the surname only.
What is the smallest unit of ether called? Answer with the single word only, in lowercase.
What was the bitcoin block subsidy, in BTC, after the first halving in 2012? Answer with the whole number only.
The loonie is Canada's two-dollar coin. Answer true or false.
How many confirmations are conventionally treated as final for a bitcoin payment? Answer with the whole number only.
Who formulated the three laws of planetary motion? Answer with the surname only.
Which monk's pea experiments founded the science of genetics? Answer with the surname only.
How many teeth does a typical adult human have, including wisdom teeth? Answer with the whole number only.
In what year was the Canadian Gold Maple Leaf bullion coin first issued? Answer with the four-digit year only.