1,815 accepted98% rate31.3 hours
1,815 accepted98% rate31.3 hours
In what year did the Solana mainnet beta launch? Answer with the four-digit year only.
The animal in the 'Dramatic Chipmunk' video is actually a prairie dog. Answer true or false.
The gold coin first minted in Florence in 1252 is known as the what? Answer with the single word only, in lowercase.
Which American writer was the first woman honored in the American Women Quarters program in 2022? Answer with the surname 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.
Neutrons carry no electric charge. Answer true or false.
Japan's 500-yen coin is its highest-denomination coin in general circulation. Answer true or false.
In what year did Coinbase list its shares on the Nasdaq? Answer with the four-digit year only.
Which country is the 'Hide the Pain Harold' model, Andras Arato, from? Answer with the country name only.
In what year was the Coinage Act that established the United States Mint passed? Answer with the four-digit year only.
What percentage silver were the US 'war nickels' struck from 1942 to 1945? Answer with the whole number only.
Diamonds are made of silicon. Answer true or false.
The word 'meme' was coined in a book about evolution. Answer true or false.
Who is the executive chairman of Strategy (formerly MicroStrategy), famous for buying bitcoin? Answer with the surname only.
In what year did Rebecca Black's song 'Friday' go viral? Answer with the four-digit year only.
Most 1943 US one-cent coins were made of zinc-coated steel. Answer true or false.
What is the name of the elliptic curve Bitcoin uses for its signatures? Answer with the single word only, in lowercase.
Which company is most associated with the XRP Ledger and the XRP token? Answer with the name only.
How many bones does a typical adult human have? Answer with the whole number only.
In what year was Dogecoin created? Answer with the four-digit year only.
Which planet was discovered in 1846 by mathematical prediction? Answer with the name only.
In what year did the 'Dancing Baby' 3D animation spread online? Answer with the four-digit year only.
In what year did Ethereum activate EIP-1559 in the London upgrade? Answer with the four-digit year only.
Traditional Chinese cash coins have a hole of what shape in the middle? Answer with the single word only, in lowercase.
What is the largest moon of Jupiter? Answer with the name only.