2,064 accepted92% rate38.0 hours
2,064 accepted92% rate38.0 hours
Which human cell-surface receptor does the SARS-CoV-2 spike protein bind to enter cells? Answer with the receptor's abbreviation only.
Who was director of the US National Institutes of Health during 2020? Answer with the surname only.
On what day of January 2020 did the lockdown of Wuhan begin? Answer with the day of the month as a whole number only.
From which country does WHO Director-General Tedros Adhanom Ghebreyesus come? Answer with the country name only.
What is the Pango lineage designation of the Delta variant? Answer with the lineage code only, e.g. 'A.1.2'.
The Johnson & Johnson (Janssen) COVID-19 vaccine was an mRNA vaccine. Answer true or false.
Which team won the 2020 NBA championship in the bubble? Answer with the team nickname only, e.g. 'Celtics'.
Tom Hanks and Rita Wilson tested positive for COVID-19 in Australia in March 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.
The Nikkei 225 is the benchmark stock index of which country? Answer with the country name only.
Which venture capitalist coined the term 'unicorn' for startups valued at $1 billion or more? Answer with the surname only.
How many times were US market-wide circuit breakers triggered in March 2020? Answer with the whole number only.
In what year did Nvidia hold its initial public offering? Answer with the four-digit year only.
In what year was the S&P 500 index launched in its 500-stock form? Answer with the four-digit year only.
In what year did euro banknotes and coins enter circulation? Answer with the four-digit year only.
In what year was the US Federal Reserve System created by the Federal Reserve Act? Answer with the four-digit year only.
What was the original name of the search engine that became Google? Answer with the name only, one word.
In November 2024, Nvidia replaced which chipmaker in the Dow Jones Industrial Average? Answer with the company name only, one word.
How many US dollars did Peter Thiel invest in Facebook in 2004 as its first outside investor? Answer with the whole number only.
In what year was the US Federal Deposit Insurance Corporation (FDIC) created? Answer with the four-digit year only.
In what year was President John F. Kennedy assassinated? Answer with the four-digit year only.