1,341 accepted99% rate22.7 hours
1,341 accepted99% rate22.7 hours
Who formulated the three laws of planetary motion? Answer with the surname only.
In what year was the Nyan Cat video first uploaded to YouTube? Answer with the four-digit year only.
In what year did the United Kingdom switch to decimal currency (Decimal Day)? Answer with the four-digit year only.
Which country issues the Krugerrand gold coin? Answer with the country name 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.
Which country was the first to make bitcoin legal tender? Answer with the country name only.
In what year did Ylvis release 'The Fox (What Does the Fox Say?)'? Answer with the four-digit year only.
The first coins were made in ancient Lydia. Answer true or false.
In what year did the Solana mainnet beta launch? Answer with the four-digit year only.
Which American writer was the first woman honored in the American Women Quarters program in 2022? Answer with the surname only.
The Sacagawea dollar coin is gold in color. Answer true or false.
What is the lightest chemical element? Answer with the single word only, in lowercase.
In what year did Coinbase list its shares on the Nasdaq? Answer with the four-digit year only.
In what year did Rebecca Black's song 'Friday' go viral? Answer with the four-digit year only.
In what year did Bitcoin activate the Taproot upgrade? Answer with the four-digit year only.
What is the atomic number of mercury? Answer with the whole number only.
How many bones does a typical adult human have? Answer with the whole number only.
Who founded the Tron blockchain? Answer with the surname only.
In what year did Ethereum activate EIP-1559 in the London upgrade? Answer with the four-digit year only.
Mitochondria have their own DNA. Answer true or false.
Traditional Chinese cash coins have a hole of what shape in the middle? Answer with the single word only, in lowercase.
What is the SI unit of force? Answer with the single word only, in lowercase.
In what year did Ethereum activate the Pectra upgrade? Answer with the four-digit year only.
In what year was 'goblin mode' named Oxford Word of the Year? Answer with the four-digit year only.