46 questions with answers · tap one to see its answer

Hard Trivia Questions

Hard trivia questions should be tough but fair: one clear answer, and a fact worth knowing once you hear it. These 46 questions are for experienced quizzers, final rounds and tiebreakers, across history, science, geography, language and the arts. If you get more than half right, you are doing very well. For a gentler start, see the easy trivia questions.

Every answer was checked against two independent sources on November 9, 2026.

Which metal has the highest melting point of all metals, at over 3,400 degrees Celsius?
Answer: Tungsten
Its chemical symbol, W, comes from wolfram, its name in German and several other languages.
Checked against Wikipedia and Royal Society of Chemistry
Which is the only US state whose name has just one syllable?
Answer: Maine
Maine is also the only state that borders exactly one other state, New Hampshire.
Checked against ebsco.com and geographyrealm.com
The ancient city of Carthage, rival of Rome in the Punic Wars, stood in which modern country?
Answer: Tunisia
It was founded by Phoenician settlers from the city of Tyre, according to tradition in 814 BCE.
Checked against Wikipedia and UNESCO
The word atom comes from a Greek word meaning what?
Answer: Uncuttable (indivisible)
Greek thinkers such as Democritus imagined atoms as tiny pieces of matter that could not be split.
Checked against Wikipedia and Dictionary.com
Which Danish physicist proposed in 1913 that electrons circle the atom's nucleus in fixed orbits?
Answer: Niels Bohr
He won the 1922 Nobel Prize in Physics, and the element bohrium is named after him.
Checked against The Nobel Prize and Wikipedia
The ruins of the legendary city of Troy lie at Hisarlik, in which modern country?
Answer: Turkey (Türkiye)
Heinrich Schliemann dug there in the 1870s, and archaeologists have found at least nine cities built on top of each other.
Checked against Wikipedia and UNESCO
As of 2026, counting its overseas territories, which country spans the most time zones?
Answer: France
Its 12 time zones run from UTC−10 in French Polynesia to UTC+12 in Wallis and Futuna.
Checked against Wikipedia and Guinness World Records
Which noble gas takes its name from the Greek word for stranger?
Answer: Xenon
William Ramsay and Morris Travers discovered it in 1898 in what was left after liquid air boiled away.
Checked against Wikipedia and Royal Society of Chemistry
Which planet was discovered in 1846 after mathematicians predicted where it should be?
Answer: Neptune
Urbain Le Verrier worked out its position from tugs on the orbit of Uranus, and Johann Galle spotted it within a degree of the prediction.
Checked against Wikipedia and NASA
The Rosetta Stone carries the same decree in hieroglyphs, Demotic and which other script?
Answer: Ancient Greek
Because scholars could read the Greek, it helped Jean-François Champollion decipher hieroglyphs in 1822.
Checked against Wikipedia and Smithsonian Magazine
Which Byzantine emperor built the Hagia Sophia, completed in 537?
Answer: Justinian I
When it was completed, it had the largest interior space of any building in the world.
Checked against Wikipedia and Smithsonian Magazine
Marshall Islanders traditionally navigated the ocean using charts made from which materials?
Answer: Sticks and shells
The curved sticks showed patterns of ocean swells, and the shells marked the positions of islands.
Checked against Wikipedia and Library of Congress
The ancient Maya counted using a number system based on which number?
Answer: 20
Their system also had a symbol for zero, often drawn as a shell.
Checked against Wikipedia and mathshistory.st-andrews.ac.uk
Finnish, Estonian and Hungarian belong to which language family?
Answer: Uralic
Unlike most European languages, they are not part of the Indo-European family.
Checked against Wikipedia and cns.utexas.edu
What was the name of the Inca system of knotted cords used to record numbers and information?
Answer: Quipu (khipu)
The Inca had no known writing system, yet quipus tracked taxes, censuses and storehouse goods.
Checked against sciencenews.org and theconversation.com
Which British naturalist came up with the theory of evolution by natural selection at the same time as Charles Darwin?
Answer: Alfred Russel Wallace
Their ideas were presented together to the Linnean Society in London in 1858.
Checked against Wikipedia and linnean.org
Which mathematical constant, about 2.718, is the base of the natural logarithm?
Answer: e (Euler's number)
It is named after Leonhard Euler, though Jacob Bernoulli came across it first while studying compound interest.
Checked against Wikipedia and mathshistory.st-andrews.ac.uk
In 1676, Danish astronomer Ole Rømer used the moons of Jupiter to show that what travels at a finite speed?
Answer: Light
He noticed that eclipses of the moon Io came early or late depending on how far Earth was from Jupiter.
Checked against Wikipedia and observatoiredeparis.psl.eu
The name of the Swahili language comes from an Arabic word meaning what?
Answer: Coasts
Swahili grew up among trading towns on the East African coast and borrows many words from Arabic.
Checked against Wikipedia and World History Encyclopedia
Which Pacific island nation moved the International Date Line in 1995 so all its islands share the same date?
Answer: Kiribati
As a result, its Line Islands are among the first places on Earth to greet each new day.
Checked against Wikipedia and cbc.ca
The ruins of Persepolis were the ceremonial center of which ancient Persian empire?
Answer: The Achaemenid Empire
Darius the Great began building it around 518 BCE, and Alexander the Great burned it in 330 BCE.
Checked against Wikipedia and UNESCO
In which Tanzanian gorge did Louis and Mary Leakey find some of the most important early human fossils?
Answer: Olduvai Gorge
Its ancient stone tools gave their name to the Oldowan, one of the earliest known toolmaking traditions.
Checked against Wikipedia and Natural History Museum
Horace Walpole coined the word serendipity from Serendip, an old name for which island nation?
Answer: Sri Lanka
He based it on a Persian tale whose three princes kept making lucky discoveries by accident.
Checked against Wikipedia and npr.org
Brain freeze from eating ice cream too fast has which long medical name?
Answer: Sphenopalatine ganglioneuralgia
It happens when cold hits the roof of the mouth, making nearby blood vessels quickly narrow and then widen.
Checked against my.clevelandclinic.org and hackensackmeridianhealth.org
Which Dutch scientist built the first pendulum clock in 1656?
Answer: Christiaan Huygens
He also discovered Saturn's largest moon, Titan, in 1655.
Checked against Wikipedia and aps.org
Which German-born astronomer, living in England, discovered Uranus in 1781?
Answer: William Herschel
He wanted to name it after King George III, but the name Uranus eventually won out.
Checked against Wikipedia and NASA
Which element was first detected in the Sun's light in 1868, years before it was found on Earth?
Answer: Helium
Its name comes from helios, the Greek word for the Sun.
Checked against Wikipedia and Royal Society of Chemistry
What is the name of the science of dating events by studying the growth rings of trees?
Answer: Dendrochronology
Tree-ring records reach back more than 10,000 years and help scientists calibrate radiocarbon dating.
Checked against Wikipedia and nature.com
What was the name of ancient Rome's port city at the mouth of the Tiber River?
Answer: Ostia
Its well-preserved ruins, called Ostia Antica, include apartment blocks, shops and a theater.
Checked against Wikipedia and ostiaantica.cultura.gov.it
What is the name for the fear of the number 13?
Answer: Triskaidekaphobia
The word comes from the Greek for three and ten, plus phobia.
Checked against Wikipedia and Dictionary.com
Which typeface, designed in Switzerland in 1957, was first called Neue Haas Grotesk?
Answer: Helvetica
It was renamed in 1960 after Helvetia, the Latin name for Switzerland, to help it sell abroad.
Checked against Wikipedia and myfonts.com
Which costly blue pigment, made by grinding lapis lazuli, was prized by Renaissance painters?
Answer: Ultramarine
Its name means beyond the sea, because the stone was shipped to Europe from mines in what is now Afghanistan.
Checked against Wikipedia and theparisreview.org
The Tsingy, a vast forest of razor-sharp limestone pinnacles, is found on which island nation?
Answer: Madagascar
Tsingy roughly means where one cannot walk barefoot in the Malagasy language.
Checked against Wikipedia and npr.org
Which Scottish botanist described the jittery motion of tiny particles suspended in water in 1827?
Answer: Robert Brown
Albert Einstein explained the movement in 1905 as the particles being jostled by water molecules.
Checked against Wikipedia and linnean.org
Aldebaran, the bright red eye of Taurus the bull, takes its name from an Arabic word meaning what?
Answer: The follower
The star seems to follow the Pleiades star cluster across the night sky.
Checked against Wikipedia and Dictionary.com
Which Japanese poetic form, older than haiku, has 31 syllables in a 5-7-5-7-7 pattern?
Answer: Tanka
Tanka were the main form of court poetry in Japan for centuries, and poets still write them today.
Checked against Wikipedia and poets.org
The word mausoleum comes from the grand tomb of which ancient ruler?
Answer: Mausolus
His tomb at Halicarnassus, now Bodrum, was one of the Seven Wonders of the Ancient World.
Checked against Wikipedia and Dictionary.com
Which Polynesian navigator from the island of Ra'iatea sailed with James Cook in 1769?
Answer: Tupaia
He drew a chart of dozens of Pacific islands for Cook's crew, mapping a vast area from memory.
Checked against Wikipedia and uni-potsdam.de
Which Pacific island nation was known as the New Hebrides until independence in 1980?
Answer: Vanuatu
It was once ruled jointly by Britain and France, an unusual arrangement called a condominium.
Checked against Wikipedia and rnz.co.nz
Which English-based creole language is widely used as a common tongue across Papua New Guinea?
Answer: Tok Pisin
Its name comes from the English words talk and pidgin.
Checked against Wikipedia and oxfordlearnersdictionaries.com
What is the name of the traditional Indonesian shadow puppet theater that uses flat leather puppets?
Answer: Wayang kulit
Kulit means skin or leather, and UNESCO lists wayang puppet theater as intangible cultural heritage.
Checked against Wikipedia and UNESCO
Which name for the # symbol was coined at Bell Labs for telephone keypads?
Answer: Octothorpe
The octo part refers to its eight points; where the thorpe part came from is still debated.
Checked against Wikipedia and Dictionary.com
In mathematics, what is the value of zero factorial, written 0!?
Answer: 1
There is exactly one way to arrange an empty set, so mathematicians define it as 1.
Checked against Wikipedia and Wolfram MathWorld
What do you get when you add up all the whole numbers from 1 to 100?
Answer: 5,050
Pairing 1 with 100, 2 with 99 and so on gives 50 pairs that each add up to 101.
Checked against Wikipedia and mathshistory.st-andrews.ac.uk
Which ancient script, still in use today, is used to write the Amharic language?
Answer: Ge'ez (Ethiopic)
Each character stands for a consonant plus a vowel, so Amharic uses more than 200 characters.
Checked against Wikipedia and unicode.org
The four-lion sculpture used as India's national emblem comes from a pillar made for which ancient emperor?
Answer: Ashoka
The Lion Capital of Ashoka, carved around 250 BCE, was found at Sarnath and is kept in the museum there.
Checked against Wikipedia and eoikhartoum.gov.in