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What is the common name of the compound with the formula NaCl? Answer with the two-word common name only, in lowercase.
What is the pH of pure water at 25 degrees Celsius? Answer with the whole number only.
Which quark is the heaviest? Answer with the quark name only, in lowercase.
Which is the largest moon in the Solar System? Answer with the moon's name only.
Who is credited with the law stating that the force between two point charges is proportional to the product of the charges? Answer with the surname only.
In what year was the Human Genome Project declared complete? Answer with the four-digit year only.
In what year did the New Horizons spacecraft fly past Pluto? Answer with the four-digit year only.
Helium is a noble gas. Answer true or false.
Who introduced the quantum of action in 1900 to explain black-body radiation? Answer with the surname only.
How many carbon atoms are in one molecule of benzene? Answer with the whole number only.
In what year was the Kyoto Protocol adopted? Answer with the four-digit year only.
Who discovered electromagnetic induction in 1831? Answer with the surname only.
Who discovered X-rays in 1895? Answer with the surname only, in plain letters without diacritics.
Which element was named after Marie Curie's homeland of Poland? Answer with the element name only, in English.
Which NASA rover landed on Mars in February 2021? Answer with the name only.
In which organelle does photosynthesis take place in plant cells? Answer with the organelle name only, singular, in lowercase.
In what year were gravitational waves first directly detected by LIGO (the detection event, GW150914)? Answer with the four-digit year only.
Humans share a common ancestor with chimpanzees. Answer true or false.
In what year was the Montreal Protocol on ozone-depleting substances signed? Answer with the four-digit year only.
What is AT&T's NYSE ticker symbol? Answer with the ticker symbol only.
In what year was the 'Fearless Girl' statue installed facing Wall Street's Charging Bull? Answer with the four-digit year 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.
Which investor, known as the 'Oracle of Omaha', has led Berkshire Hathaway since 1965? Answer with the surname only.
What was Twitter's original stylized name, written without vowels? Answer with the name only, in lowercase.