Tongue Trivia
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46 free Tongue trivia questions with answers — science & nature quiz, new questions added Oct 2026.
The tongue is the only muscle group in your body you can stick out at someone, and it does far more than taste. This tongue trivia quiz covers the whole organ: how many taste buds you have and how fast they are replaced, the four kinds of bumps on its surface, the nerve that moves it, the muscle anatomists call its "safety muscle", why the tongue-map diagram from school is wrong, and what conditions like tongue-tie, geographic tongue and strawberry tongue actually are. Then it heads into the animal kingdom, where the strangest tongues live: the chameleon's ballistic tongue, the anteater's tongue anchored to its breastbone, the hummingbird's pump, the woodpecker's tongue that wraps around its skull, and the frog family with no tongue at all. There are rounds on tongue as food (lengua tacos, gyutan, cod tongues), tongue idioms and gestures, and the most famous tongues in pop culture: Einstein's birthday photo, Gene Simmons and the Rolling Stones logo. Questions run from easy ones a curious 10-year-old can get to hard anatomy and physiology, and every answer was checked against Wikipedia's articles on the tongue, taste, lingual papillae and each animal, with the source quoted on each question.
30 of 46 questions with answers and explanations. Play the quiz
Q 01After finding umami in kelp broth in 1908, chemist Kikunae Ikeda turned his discovery into which product?
MSG
MSG, monosodium glutamate, went on sale within a year under the brand name Ajinomoto. Ikeda had traced the savory taste of seaweed stock to glutamate and patented a way to make it.
Q 02The root of the tongue is anchored to which U-shaped bone, the only one that touches no other bone?
Hyoid
Hyoid: the bone hangs in the front of the neck, held in place only by muscles and ligaments, and gives the tongue and the floor of the mouth something firm to pull against.
Q 03What is the average lifespan of a single taste bud?
About 10 days
About 10 days: taste cells are replaced constantly throughout life, which is why taste buds injured by a burn or a bite usually repair themselves.
Q 04A cat's tongue feels like sandpaper because its tiny backward-facing spines are stiffened by which protein?
Keratin
Keratin, the protein of claws and hair, turns a cat's filiform papillae into a built-in hairbrush. Humans have filiform papillae too, the only kind on the tongue with no taste buds.
Q 05Which fluffy dog breed from China is known for its unusual blue-black tongue?
Chow Chow
Chow Chow show dogs are disqualified for a pink tongue. A dark spot on another dog's tongue is often taken as proof of Chow ancestry, but tongue pigment alone cannot show that.
Q 06A Harvard psychologist's 1942 redrawing of a 1901 German study spread which myth about the tongue?
Separate taste zones
Separate taste zones were the lesson of the school 'tongue map'. Edwin Boring's graphs exaggerated the small differences in sensitivity the original paper had measured; in fact every taste can be sensed across the tongue.
Q 07Which cranial nerve, the twelfth, supplies motor fibres to almost every muscle of the tongue?
Hypoglossal
Hypoglossal means 'under the tongue', the route the nerve takes. Doctors check it by asking a patient to stick the tongue out, since the muscles it drives are the ones that push the tongue forward.
Q 08A creamy white coating on the tongue that wipes off to leave sore red patches is typical of which infection?
Oral thrush
Oral thrush is an overgrowth of Candida, a yeast that about half of us carry in the mouth without harm; it turns troublesome mostly in babies and in older people with dentures.
Q 09The fold of tissue that tethers the underside of the tongue to the floor of the mouth is called what?
Frenulum
Frenulum: when this fold is unusually short or thick it pins the tongue down, the condition known as tongue-tie, and a small cut through it is usually enough to free the tongue.
Q 10Which artery, a branch of the external carotid, is the tongue's main blood supply?
Lingual
Lingual simply means 'of the tongue'. The tissue it feeds is so rich in small vessels that a drug dissolved beneath the tongue passes straight into the bloodstream, skipping the gut and liver.
Q 11Which heart medication is routinely given under the tongue because it acts fast enough for angina?
Nitroglycerin
Nitroglycerin tablets dissolve under the tongue, where a thin lining over a dense web of capillaries lets the drug reach the blood quickly without first passing through the gut and liver.
Q 12The tongue's foramen cecum is a leftover from the embryonic descent of which gland?
Thyroid
The thyroid starts life at the base of the tongue and migrates down the neck, leaving that tiny hole as a souvenir.
Q 13A red 'strawberry tongue' with swollen bumps is a classic sign of which childhood infection?
Scarlet fever
Scarlet fever first coats the tongue white; the coating then peels to leave it red, swollen and bumpy. Doctors also look for the strawberry sign in Kawasaki disease, which skips the white stage.
Q 21Where is sticking out your tongue a traditional greeting rather than an insult?
Tibet
Tibet treats a show of the tongue as a greeting. In New Zealand the same gesture sends a fiercer message: the men performing a Māori haka thrust out their tongues.
Q 22Which Hindu goddess, shown with a lolling tongue, did Mick Jagger suggest as inspiration for the Rolling Stones' logo?
Kali
Kali's out-thrust tongue was Jagger's suggestion. The designer kept the tongue but dropped the Indian look, fearing it would date, and the logo first reached record buyers on Sticky Fingers in 1971.
Q 23The Rolling Stones' tongue logo arrived with Sticky Fingers, whose zipper sleeve was conceived by which pop artist?
Andy Warhol
Q 14A smooth, sore, 'beefy' red tongue with worn-away papillae is a classic sign of a lack of which vitamin?
Vitamin B12
Vitamin B12 deficiency can strip the papillae away, leaving the tongue smooth, sore and beefy red. Doctors call it Hunter's glossitis, and it is a classic clue to pernicious anemia.
Q 15Which over-the-counter stomach remedy is known for temporarily turning the tongue black?
Pepto-Bismol
Pepto-Bismol contains bismuth, which reacts with traces of sulfur in saliva to form black bismuth sulfide. The stain looks alarming but is harmless and fades once the medicine is stopped.
Q 16Which protein in a West African berry makes lemons taste sweet?
Miraculin
Miraculin comes from the berry known as 'miracle fruit'. It binds to the tongue's sweet receptors and switches them on only when acid arrives, so it is sour food in particular that turns sweet.
Q 17Which tongue trick did biology classes long teach, wrongly, as a simple inherited trait?
Rolling it into a tube
Rolling it into a tube was suggested as a dominant trait by geneticist Alfred Sturtevant in 1940. Twin studies soon found identical twins who differed, and he later said he was embarrassed to see the claim still in print.
Q 18The 'tongues of fire' that settle on the apostles in the Book of Acts are remembered at which Christian festival?
Pentecost
Pentecost falls on the fiftieth day of Easter. In Acts, flames like tongues rest on the apostles, who are filled with the Holy Spirit and begin to speak in languages they had never learned.
Q 19The English word 'tongue' comes from which Old English word?
Tunge
Tunge was the Old English word, a cousin of Dutch tong. By normal sound change it should now be spelled 'tung'; the '-ue' ending was apparently a fourteenth-century attempt to show how the g was pronounced.
Q 20What is the technical term for 'speaking in tongues' in religious practice?
Glossolalia
Glossolalia joins the Greek for 'tongue' and 'talking'. Linguists hear fluent syllables with no meaning they can decode, whereas xenoglossy is the claim to speak a real language never learned.
Andy Warhol conceived the working-zip cover, but the tongue was not his: it was drawn by John Pasche, a London art student Jagger had spotted at a degree show.
Q 24Which Kiss bassist, famous for his long tongue, launched a men's magazine in 2002 actually called "Tongue"?
Gene Simmons
Gene Simmons played Kiss's 'Demon', a fire-breathing, blood-spitting stage persona whose long tongue became a trademark; in 2002 he put it in the title of his own magazine, Gene Simmons Tongue.
Q 25On what occasion did Arthur Sasse take the famous photo of Einstein sticking out his tongue?
His 72nd birthday
His 72nd birthday, in March 1951, had been one long round of smiling for cameras, so when a photographer asked for one more smile Einstein stuck out his tongue. He liked the result enough to order nine prints.
Q 26In the 1952 film Singin' in the Rain, Gene Kelly's character drills tongue twisters for what reason?
To learn diction for talkies
To learn diction for talkies: once The Jazz Singer is a hit, the studio sends its silent stars to elocution coaches, and Don's lesson collapses into the song-and-dance number 'Moses Supposes'.
Q 27Which 1986 Run-D.M.C. song is named after a classic tongue twister?
Peter Piper
Peter Piper opens the album Raising Hell and shared a single with My Adidas. Its beat loops the bells from Bob James's 'Take Me to the Mardi Gras', one of hip-hop's most borrowed breaks.
Q 28What supplies the extra power that launches a chameleon's tongue at over 3,000 watts per kilogram?
Elastic recoil
Elastic recoil: muscles slowly stretch springy tissue in the tongue, which then snaps back all at once. Because a spring barely slows in the cold, a chilly chameleon can still shoot at almost full speed.
Q 29Which chameleons fire their tongues farthest for their size, to more than twice their body length?
The smallest species
The smallest species win: their tongue apparatus is proportionately bigger, so a tiny chameleon can reach about two and a half body lengths, outshooting its larger cousins.
Q 30Which toothless South American mammal flicks its sticky tongue more than twice a second to lap up insects?
Giant anteater
Giant anteater: with no teeth to chew with, it crushes its catch against the roof of its mouth and leaves a very muscular stomach to grind up the rest.