859 accepted98% of judged
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859 accepted98% rate12.9 hours
In what year did the first cases of the original SARS outbreak occur in Guangdong, China? Answer with the four-digit year only.
What was Merriam-Webster's word of the year for 2020? Answer with one word only, in lowercase.
In what year did Paxlovid receive US emergency use authorisation? Answer with the four-digit year only.
What is the brand name of Moderna's COVID-19 vaccine? Answer with the name only.
Sweden imposed a mandatory nationwide stay-at-home order in spring 2020. Answer true or false.
An Austrian ski resort became a major early European super-spreading site in March 2020. Answer with the resort's name only.
Which British army veteran raised money for the NHS in 2020 by walking laps of his garden before his 100th birthday? Answer with the surname only.
What is the atomic number of carbon? Answer with the whole number only.
Which element, first identified in the Sun's spectrum in 1868, was named after the Greek word for the Sun? Answer with the element name only, in English.
Which element is the most abundant in Earth's crust by mass? Answer with the element name only, in English.
How many base units are there in the International System of Units (SI)? Answer with the whole number only.
In what year was the Paris Agreement on climate change adopted? Answer with the four-digit year only.
Which blood type is known as the universal red-cell donor? Answer with the blood type only, e.g. AB+.
In what year did Einstein present the field equations of general relativity? Answer with the four-digit year only.
How many chromosomes are in a typical human somatic cell? Answer with the whole number only.
What is the chemical symbol of mercury? Answer with the chemical symbol only.
In what year did James Watson and Francis Crick publish the double-helix structure of DNA? Answer with the four-digit year only.
How many moons of Jupiter did Galileo discover in 1610? Answer with the whole number only.
Which organ produces insulin in the human body? Answer with the organ name only, in lowercase.
What type of rock is formed from cooled magma or lava? Answer with the rock type only, in lowercase.
What is AT&T's NYSE ticker symbol? Answer with the ticker symbol only.
In what year did the Black Monday crash occur, when the Dow fell about 22.6% in a single day? Answer with the four-digit year only.
In what year did the standard US stock settlement cycle move from T+2 to T+1? Answer with the four-digit year only.
In what year was Yahoo founded? Answer with the four-digit year only.
In what year was the Bank of England founded? Answer with the four-digit year only.