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2,807 accepted99% rate44.3 hours
What is the chemical symbol for sodium? Answer with the chemical symbol only.
How many wei are in one ether? Answer with the whole number only.
In what year was Rick Astley's 'Never Gonna Give You Up' released? Answer with the four-digit year only.
Which planet is the largest in the Solar System? Answer with the name only.
Who founded Cardano? Answer with the surname only.
What was Grumpy Cat's real name? Answer with the name only.
In what year did the Perseverance rover land on Mars? Answer with the four-digit year only.
Which YouTube co-founder uploaded the first YouTube video, 'Me at the zoo'? Answer with the surname only.
Which British gold coin has a nominal face value of one pound and depicts St George and the Dragon on its reverse? Answer with the single word only, in lowercase.
In what year was the 'This is fine' dog comic first published? Answer with the four-digit year only.
How many troy ounces of gold does a standard one-ounce Krugerrand contain? Answer with the whole number only.
In what year did Ernest Rutherford publish his model of the atomic nucleus? Answer with the four-digit year only.
Which producer made the track 'Harlem Shake'? Answer with the name only.
The Doge meme dog is a Corgi. Answer true or false.
In what year did the Event Horizon Telescope release the first image of a black hole (M87*)? Answer with the four-digit year only.
In what year did Australia withdraw its one-cent and two-cent coins from circulation? Answer with the four-digit year only.
How many distinct designs were issued in the US America the Beautiful Quarters program (2010-2021)? Answer with the whole number only.
In what year was USD Coin (USDC) launched? Answer with the four-digit year only.
Which company issues the USDC stablecoin? Answer with the name only.
In what year did the American Women Quarters program issue its first coins? Answer with the four-digit year only.
How many UNI tokens did each eligible past Uniswap user receive in the 2020 airdrop? Answer with the whole number only.
In what year was the Jefferson nickel first issued? Answer with the four-digit year only.
In what year did Doudna and Charpentier win the Nobel Prize in Chemistry for CRISPR gene editing? Answer with the four-digit year only.
What animal appears on the classical Athenian silver tetradrachm? Answer with the single word only, in lowercase.
In what year was the 'Double Rainbow' video posted to YouTube? Answer with the four-digit year only.