Rice Trivia
0Loading crowd target
0Loading crowd target
6correct to beat the crowd
49 free Rice trivia questions with answers — trivia quiz, new questions added Oct 2026.
Rice feeds more than half the people on Earth. It was domesticated in China at least 9,000 years ago, separately in West Africa, and it now covers everything from sticky sushi rice to saffron paella, from the terraces of Ifugao to the labs of the International Rice Research Institute. This quiz covers the plant, the paddy, the trade, the science and the dishes. Good for food and agriculture quizzes, classroom science, or Filipino and Asian trivia nights where rice is never far from the table. Every answer comes with a short explanation.
30 of 49 questions with answers and explanations. Play the quiz
Q 01Rice is the staple food of roughly what share of the world's population?
Over half
Over half of humanity treats rice as its staple, yet about 90% of the crop is grown on a single continent, Asia.
Q 02What is the scientific name of Asian rice?
Oryza sativa
Oryza sativa is a single species, yet basmati, jasmine and sushi rice all belong to it: farmers have bred it into thousands of distinct varieties.
Q 03In which country was Asian rice first domesticated, more than 8,000 years ago?
China
China's Stone Age farmers tamed it from a wild grass, and migrants and merchant traders later carried it across Asia and on to the rest of the world.
Q 04Besides Asia, which continent domesticated its own species of rice, about 3,000 years ago?
Africa
Africa's own rice yields less than Asian rice but is hardier, so breeders crossed the two to create NERICA, 'New Rice for Africa', for poor soils and drought.
Q 05In 2023, which two crops outranked rice in world production by weight?
Sugarcane and maize
Sugarcane and maize led in 2023, but much of their tonnage becomes sugar, biofuel and animal feed, whereas rice, at about 800 million tonnes, is grown chiefly as food.
Q 06In 2023, which two countries together grew more than 50% of the world's rice?
China and India
China and India grew 52% of the 2023 crop between them; China, an exporter in the early 2000s, had by 2013 also become the world's biggest rice importer.
Q 07Which country overtook Thailand in 2012 to become the world's largest rice exporter?
India
India took the top spot in 2012 after Thailand's government stockpiled millions of tonnes of rice, hoping to force up world prices; buyers turned to cheaper sellers instead.
Q 08What name is given to harvested rice that has not yet been milled?
Paddy
Paddy comes from the Malay padi, 'rice in the straw'; English later stretched the word to the flooded fields themselves, as a shortening of 'paddy field'.
Q 09Brown rice is grain that has had only what removed?
The inedible husk
The inedible husk is all that comes off; the bran and germ stay on, which is why brown rice is chewier and takes longer to cook than white.
Q 10How is parboiled rice treated before it is milled?
Steamed
Steamed under pressure after soaking, the grain hardens so it breaks less in the mill, and nutrients are pushed from the bran into the kernel.
Q 11Which two starch components give different rice varieties their texture?
Amylose and amylopectin
Amylose and amylopectin set the texture: the more amylopectin, the more the grains cling, and glue-like sticky rice is almost all amylopectin.
Q 12Black rice is nicknamed "forbidden rice" because it was said to be reserved for whom?
The royal family
The royal family kept it for themselves, the story goes, and it was sent to the emperor as tribute; sellers still trade on the 'forbidden' name today.
Q 13Which rice dish, simmered in tomato and chilli, fuels a friendly rivalry between Nigeria and Ghana?
Jollof
Q 21Which two foundations created the International Rice Research Institute?
Ford and Rockefeller
Ford and Rockefeller, two American foundations, set it up in the Philippines in 1960 amid fears that Asia's population was outgrowing its rice; its new varieties are credited with averting famine.
Q 22IR8, the 1966 "miracle rice", owed its success mainly to which trait?
Short, sturdy stems
Short, sturdy stems meant IR8 put more of its energy into grain and did not grow tall and fall over when fertiliser was applied, as older varieties did.
Q 23Which Chinese agronomist is known as the "Father of Hybrid Rice"?
Yuan Longping
Jollof takes its name from the Jolof, or Wolof, empire in what is now Senegal, so the two rivals are sparring over a dish that most likely began in neither country.
Q 14Golden rice was genetically engineered to supply a precursor of which nutrient?
Vitamin A
Vitamin A deficiency blinds an estimated 250,000 to 500,000 children a year, so the rice was engineered to make beta-carotene, which the body turns into the vitamin.
Q 15A diet of polished white rice can cause beriberi, a lack of which vitamin?
Vitamin B1
Vitamin B1, or thiamine, is milled away with the grain's outer layers; Christiaan Eijkman found the link when hens fed polished rice fell ill, and won a Nobel Prize.
Q 16Rice is suitable for coeliacs because it contains no what?
Gluten
Gluten is absent even from 'glutinous' rice: that name describes its glue-like stickiness, not the wheat protein.
Q 17Which greenhouse gas do flooded rice fields release in large amounts?
Methane
Methane is made by microbes that thrive once flooding cuts the soil off from oxygen; draining the fields a few times a season can halve the emissions.
Q 18At which stage of growth can a single hour at 35 °C or more leave a rice plant with no grain?
Flowering
Flowering is the weak point: flowers that spend over an hour at 35 °C or more set no grain, so one heatwave at the wrong moment can cost the whole crop.
Q 19Rice blast, one of the most destructive diseases of rice, is caused by what kind of organism?
A fungus
A fungus causes blast; it can kill seedlings outright, and the grain it destroys each year could feed an estimated 60 million people.
Q 20Farmers in parts of Asia traditionally raise which animals in flooded rice fields to control pests?
Ducks and fish
Ducks and fish eat the pests and weeds and fertilise the crop with their droppings, so one flooded field yields meat as well as rice.
Yuan Longping's hybrid rice yielded about 20% more than earlier varieties and went into large-scale production in China in the 1970s.
Q 24In 2005, rice became the first crop plant to reach which scientific milestone?
Its full genome sequenced
Its full genome sequenced: rice went first because it has the smallest genome of the major cereals, which made it the model plant for the other cereal grasses.
Q 25Which Louisiana dish cooks its rice in one pot with sausage and seafood?
Jambalaya
Jambalaya simmers its rice in the pot with everything else, whereas gumbo is a stew served with rice cooked on its own; one theory traces jambalaya to Spanish settlers attempting paella.
Q 26Which sweet, milky drink is made in Mexico from soaked rice and cinnamon?
Horchata
Horchata in Spain is made from ground tiger nuts, not rice; in Mexico, rice and cinnamon took their place.
Q 27Which Korean dish's name literally means "mixed rice"?
Bibimbap
Bibimbap joins bibim, 'mixing', and bap, 'cooked rice': the vegetables, meat and egg on top are stirred into the bowl just before eating.
Q 28Which noodle soup pairs flat rice noodles with beef broth and fresh herbs?
Pho
Pho began in northern Vietnam and travelled the world with refugees after the Vietnam War; English had already borrowed the word by 1935.
Q 29Sake makers grow which mould on rice to turn its starch into sugar?
Koji
Koji's enzymes break the starch into sugar while yeast ferments that sugar in the same tank at the same time.
Q 30Which colony grew most of the rice British America exported before the Revolution?
South Carolina
South Carolina's rice fields were flooded and drained by the river tides, through a system of dikes built and worked by enslaved labourers.