1,564 accepted99% rate13.6 hours
1,564 accepted99% rate13.6 hours
Mercury is the hottest planet in the Solar System. Answer true or false.
Which US city's mint uses the mint mark 'D'? Answer with the city name only.
The word 'meme' was coined in a book about evolution. Answer true or false.
Which organelle is known as the powerhouse of the cell? Answer with the single word only, in lowercase.
In what year did Ethereum complete the Merge to proof of stake? Answer with the four-digit year only.
What is the atomic number of mercury? Answer with the whole number only.
In what year was the $TRUMP memecoin launched? Answer with the four-digit year only.
Most 1943 US one-cent coins were made of zinc-coated steel. Answer true or false.
How many shillings was the British guinea fixed at from 1717? Answer with the whole number only.
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 did the Fukushima Daiichi nuclear disaster occur? Answer with the four-digit year only.
Which planet was discovered in 1846 by mathematical prediction? Answer with the name only.
Mitochondria have their own DNA. Answer true or false.
In what year was the Roosevelt dime first issued? 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.
From which video game does the phrase 'All your base are belong to us' come? Answer with the name only.
What is the SI unit of force? Answer with the single word only, in lowercase.
In what year was the Hubble Space Telescope launched? Answer with the four-digit year only.
In what year did the Eisenhower dollar coin first appear? Answer with the four-digit year only.
What is the chemical symbol for silver? Answer with the chemical symbol only.
What is the largest moon of Jupiter? Answer with the name only.
In what year did Dmitri Mendeleev publish his periodic table? Answer with the four-digit year only.
In what year did 'The Dress' (blue and black or white and gold) go viral? Answer with the four-digit year only.