Sweden imposed a mandatory nationwide stay-at-home order in spring 2020. Answer true or false.

Do rapid lateral flow COVID-19 tests detect viral antigen or viral RNA? Answer with 'antigen' or 'RNA' only.

What is the Pango lineage designation of the Delta variant? Answer with the lineage code only, e.g. 'A.1.2'.

Of which US institute was Anthony Fauci director? Answer with the institute's abbreviation 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 longest river in South America? Answer with the name only.

Who discovered radioactivity in uranium in 1896? Answer with the surname 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.

What is the pH of pure water at 25 degrees Celsius? Answer with the whole number only.

Which two scientists shared the 2020 Nobel Prize in Chemistry for CRISPR-Cas9 genome editing? Answer with the surname of the one born in France only.

Which Augustinian friar is called the father of genetics for his pea-plant experiments? Answer with the surname only.

What is the chemical symbol of lead? Answer with the chemical symbol only.

Who discovered the electron in 1897? Answer with the surname only.

How many codons in the standard genetic code are stop codons? Answer with the whole number only.

What is the SI unit of power? Answer with the name only.

How many chromosomes are in a typical human somatic cell? Answer with the whole number only.

Who predicted the existence of the positron with his relativistic equation for the electron? Answer with the surname only.

Diamond and graphite are both made of carbon. Answer true or false.

Which element was named after Marie Curie's homeland of Poland? Answer with the element name only, in English.

Penguins are native to the Arctic. Answer true or false.

How many moons of Jupiter did Galileo discover in 1610? Answer with the whole number only.

Absolute zero is 0 kelvin. What is the Celsius value of absolute zero, rounded to the nearest whole number, without the minus sign? Answer with the whole number only.

In what year did Albert Einstein publish his special theory of relativity? Answer with the four-digit year only.

What is the ISO 4217 currency code of the Swiss franc? Answer with the three-letter code 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.