Machine-readable (public fields)
[
{
"id": "kn-001",
"section": "reasoning",
"domain": "rea",
"prompt": "A shop raises its prices by 20%, then puts everything 20% off. Compared with the original price, you now pay…",
"options": [
"The same as before",
"20% less",
"4% less",
"4% more"
]
},
{
"id": "kn-002",
"section": "reasoning",
"domain": "rea",
"prompt": "All Bloops are Razzies, and all Razzies are Lazzies. It follows that all Bloops are…",
"options": [
"Razzies only",
"Lazzies",
"Neither",
"It cannot be determined"
]
},
{
"id": "kn-003",
"section": "reasoning",
"domain": "rea",
"prompt": "A fair coin has landed heads five times in a row. The chance the next flip lands heads is…",
"options": [
"Much less than half",
"Slightly less than half",
"Still one half",
"Much more than half"
]
},
{
"id": "kn-004",
"section": "reasoning",
"domain": "rea",
"prompt": "A bat and a ball cost $1.10 in total. The bat costs $1.00 more than the ball. The ball costs…",
"options": [
"$0.10",
"$0.05",
"$0.15",
"$0.01"
]
},
{
"id": "kn-005",
"section": "reasoning",
"domain": "rea",
"prompt": "Car A drives 60 km/h for 2 hours. Car B drives 80 km/h for 1.5 hours. Which car traveled farther?",
"options": [
"Car A",
"Car B",
"They tied",
"Cannot be determined"
]
},
{
"id": "kn-006",
"section": "reasoning",
"domain": "rea",
"prompt": "What comes next? 3, 6, 11, 18, 27, …",
"options": [
"34",
"36",
"38",
"44"
]
},
{
"id": "kn-007",
"section": "reasoning",
"domain": "rea",
"prompt": "What comes next? 2, 6, 12, 20, 30, …",
"options": [
"36",
"40",
"42",
"48"
]
},
{
"id": "kn-008",
"section": "reasoning",
"domain": "rea",
"prompt": "No mammal is a bird. A bat is a mammal. A bat is therefore…",
"options": [
"A bird",
"Not a bird",
"Both a mammal and a bird",
"Cannot be determined"
]
},
{
"id": "kn-009",
"section": "reasoning",
"domain": "rea",
"prompt": "Rule: if it rains, the grass gets wet. This morning the grass is wet. What can you conclude?",
"options": [
"It rained overnight",
"It did not rain",
"It cannot be determined from this alone",
"The grass was definitely watered"
]
},
{
"id": "kn-010",
"section": "reasoning",
"domain": "rea",
"prompt": "A bag holds 3 red marbles and 7 blue marbles. You draw one without looking. The probability it is red equals…",
"options": [
"3 in 10",
"7 in 10",
"1 in 2",
"3 in 7"
]
},
{
"id": "kn-011",
"section": "reasoning",
"domain": "rea",
"prompt": "You flip two fair coins and are told at least one landed heads. The probability both landed heads is…",
"options": [
"1/2",
"1/3",
"1/4",
"2/3"
]
},
{
"id": "kn-012",
"section": "reasoning",
"domain": "rea",
"prompt": "A game pays $10 on heads and costs you $6 on tails of a fair coin. Played 100 times, your expected total winnings are about…",
"options": [
"$100",
"$200",
"$400",
"−$100 (a loss)"
]
},
{
"id": "kn-013",
"section": "reasoning",
"domain": "rea",
"prompt": "15 workers build a wall in 20 days. At the same pace, 25 workers would take…",
"options": [
"10 days",
"12 days",
"15 days",
"33 days"
]
},
{
"id": "kn-014",
"section": "reasoning",
"domain": "rea",
"prompt": "Two trains leave the same station in opposite directions, at 60 km/h and 40 km/h. After 2.5 hours they are…",
"options": [
"200 km apart",
"250 km apart",
"300 km apart",
"150 km apart"
]
},
{
"id": "kn-015",
"section": "reasoning",
"domain": "rea",
"prompt": "A price falls by 25%, then rises by 25%. Compared with the original price, it is now…",
"options": [
"The same",
"6.25% higher",
"6.25% lower",
"12.5% lower"
]
},
{
"id": "kn-016",
"section": "reasoning",
"domain": "rea",
"prompt": "The average of 7 numbers is 12. Adding an eighth number, 26, the new average is…",
"options": [
"13",
"13.5",
"13.75",
"14.75"
]
},
{
"id": "kn-017",
"section": "reasoning",
"domain": "rea",
"prompt": "Some poets are musicians, and all musicians are artists. It follows that…",
"options": [
"All poets are artists",
"Some poets are artists",
"No poets are musicians",
"All artists are poets"
]
},
{
"id": "kn-018",
"section": "reasoning",
"domain": "rea",
"prompt": "Rule: every card with a vowel on one side has an even number on the other. Four cards show A, D, 4, 7. To test the rule you must turn over…",
"options": [
"A and 4",
"A and 7",
"D and 4",
"A and D"
]
},
{
"id": "kn-019",
"section": "reasoning",
"domain": "rea",
"prompt": "Rule: every fragile item in this warehouse is packed in foam. You find an item with no foam packing. You can conclude it is…",
"options": [
"Fragile",
"Not fragile",
"Mislabeled",
"Impossible to say"
]
},
{
"id": "kn-020",
"section": "reasoning",
"domain": "rea",
"prompt": "A tap fills a tank in 6 hours; a drain empties a full tank in 9 hours. With both open, an empty tank fills in…",
"options": [
"7.5 hours",
"12 hours",
"15 hours",
"18 hours"
]
},
{
"id": "kn-021",
"section": "reasoning",
"domain": "rea",
"prompt": "What comes next? A, C, F, J, O, …",
"options": [
"T",
"U",
"V",
"W"
]
},
{
"id": "kn-022",
"section": "reasoning",
"domain": "rea",
"prompt": "If 5 machines make 5 gadgets in 5 minutes, 100 machines make 100 gadgets in…",
"options": [
"5 minutes",
"20 minutes",
"100 minutes",
"1 minute"
]
},
{
"id": "kn-023",
"section": "reasoning",
"domain": "rea",
"prompt": "In a group of 50 people, 30 like tea and 35 like coffee, and everyone likes at least one. How many like both?",
"options": [
"5",
"10",
"15",
"20"
]
},
{
"id": "kn-024",
"section": "reasoning",
"domain": "rea",
"prompt": "Four friends sit in a row: Ana sits left of Ben, Cara sits right of Ben, and Dan sits between Ana and Ben. Left to right, the order is…",
"options": [
"Ana–Ben–Cara–Dan",
"Ana–Dan–Ben–Cara",
"Dan–Ana–Ben–Cara",
"Ana–Ben–Dan–Cara"
]
},
{
"id": "kn-025",
"section": "reasoning",
"domain": "rea",
"prompt": "An elevator starts on floor 5, goes up 3, down 5, up 2, then down 4. It ends on floor…",
"options": [
"1",
"3",
"5",
"9"
]
},
{
"id": "kn-026",
"section": "reasoning",
"domain": "rea",
"prompt": "What comes next? 2, 3, 5, 7, 11, …",
"options": [
"12",
"13",
"14",
"15"
]
},
{
"id": "kn-027",
"section": "reasoning",
"domain": "rea",
"prompt": "A cube is painted red, then cut into 27 equal small cubes (3×3×3). How many small cubes have exactly two painted faces?",
"options": [
"6",
"8",
"12",
"20"
]
},
{
"id": "kn-028",
"section": "reasoning",
"domain": "rea",
"prompt": "A recipe for 4 servings needs 250 g of flour. For 10 servings at the same ratio you need…",
"options": [
"500 g",
"625 g",
"750 g",
"1000 g"
]
},
{
"id": "kn-029",
"section": "reasoning",
"domain": "rea",
"prompt": "If 8 workers dig 8 holes in 8 days, 4 workers dig 4 holes in…",
"options": [
"4 days",
"8 days",
"16 days",
"2 days"
]
},
{
"id": "kn-030",
"section": "reasoning",
"domain": "rea",
"prompt": "Rule: if the porch light is on, someone is home. Tonight nobody is home. Is the porch light on?",
"options": [
"Yes",
"No",
"Cannot tell",
"Only if it is dark"
]
},
{
"id": "kn-031",
"section": "knowledge",
"domain": "sci",
"prompt": "Why does the daytime sky look blue?",
"options": [
"The ocean reflects its color upward",
"Air molecules scatter short blue wavelengths more than other colors",
"The atmosphere absorbs all non-blue light",
"Dust in the air is naturally blue"
]
},
{
"id": "kn-032",
"section": "knowledge",
"domain": "sci",
"prompt": "You double the voltage applied to a fixed resistor. The current through it…",
"options": [
"Doubles",
"Halves",
"Stays the same",
"Quadruples"
]
},
{
"id": "kn-033",
"section": "knowledge",
"domain": "sci",
"prompt": "Which gas do plants take in from the air for photosynthesis?",
"options": [
"Oxygen",
"Nitrogen",
"Carbon dioxide",
"Hydrogen"
]
},
{
"id": "kn-034",
"section": "knowledge",
"domain": "sci",
"prompt": "Why does ice float on liquid water?",
"options": [
"Ice contains trapped air bubbles",
"Water expands as it freezes, so ice is less dense",
"Cold objects are always buoyant",
"Surface tension holds it up"
]
},
{
"id": "kn-035",
"section": "knowledge",
"domain": "sci",
"prompt": "Ocean tides are caused mainly by…",
"options": [
"The Sun's heat",
"The Moon's gravity",
"Earth's rotation alone",
"Underwater earthquakes"
]
},
{
"id": "kn-036",
"section": "knowledge",
"domain": "sci",
"prompt": "A metal railing and a wooden bench sit outside all night at the same temperature. The metal feels colder to the touch because…",
"options": [
"Metal is always colder than wood",
"Metal draws heat away from your hand faster",
"Wood generates its own warmth",
"Your hand cools the wood down"
]
},
{
"id": "kn-037",
"section": "knowledge",
"domain": "sci",
"prompt": "Blood looks red mainly because of…",
"options": [
"Dye inside red blood cells",
"Iron in hemoglobin",
"The heart's heat",
"Oxygen turning blue in veins"
]
},
{
"id": "kn-038",
"section": "knowledge",
"domain": "sci",
"prompt": "The Moon often looks larger near the horizon than high overhead. Why?",
"options": [
"The atmosphere magnifies it like a lens",
"The Moon is physically closer at the horizon",
"It is an illusion — the Moon's apparent size does not change",
"Dust near the horizon enlarges its image"
]
},
{
"id": "kn-039",
"section": "knowledge",
"domain": "his",
"prompt": "Gutenberg's printing press mattered most because it…",
"options": [
"Was the first machine ever built",
"Made books cheap enough to spread ideas widely",
"Was funded by kings",
"Printed pictures in color"
]
},
{
"id": "kn-040",
"section": "knowledge",
"domain": "his",
"prompt": "Which came first?",
"options": [
"The Roman Empire",
"The pyramids of Giza",
"The printing press",
"The steam engine"
]
},
{
"id": "kn-041",
"section": "knowledge",
"domain": "his",
"prompt": "The Berlin Wall fell in…",
"options": [
"1979",
"1985",
"1989",
"1991"
]
},
{
"id": "kn-042",
"section": "knowledge",
"domain": "his",
"prompt": "A major reason the overland Silk Road declined was…",
"options": [
"The invention of the compass",
"Cheaper sea routes found by European explorers",
"A worldwide shortage of silk",
"A total ban on all trade"
]
},
{
"id": "kn-043",
"section": "knowledge",
"domain": "his",
"prompt": "World War I began in…",
"options": [
"1914",
"1918",
"1939",
"1945"
]
},
{
"id": "kn-044",
"section": "knowledge",
"domain": "his",
"prompt": "The Marshall Plan, launched after World War II, was mainly designed to…",
"options": [
"Rebuild Western Europe's economies",
"Punish Germany with permanent sanctions",
"Create the United Nations",
"Fund overseas colonies"
]
},
{
"id": "kn-045",
"section": "knowledge",
"domain": "his",
"prompt": "The steep-sided pyramids of Meroë, in present-day Sudan, were built by the kingdom of…",
"options": [
"Egypt",
"Kush",
"Axum",
"Mali"
]
},
{
"id": "kn-046",
"section": "knowledge",
"domain": "his",
"prompt": "In the 1300s–1400s, Timbuktu was a renowned center of scholarship under the…",
"options": [
"Ottoman Empire",
"Mali Empire",
"Roman Empire",
"Inca Empire"
]
},
{
"id": "kn-047",
"section": "knowledge",
"domain": "geo",
"prompt": "Which continent has the most countries?",
"options": [
"Asia",
"Africa",
"Europe",
"South America"
]
},
{
"id": "kn-048",
"section": "knowledge",
"domain": "geo",
"prompt": "Why does Australia have so many marsupials found nowhere else?",
"options": [
"They were imported as pets long ago",
"Long geographic isolation let them evolve separately",
"The climate spontaneously produces them",
"They migrate there every year"
]
},
{
"id": "kn-049",
"section": "knowledge",
"domain": "geo",
"prompt": "The capital of Canada is…",
"options": [
"Toronto",
"Vancouver",
"Ottawa",
"Montreal"
]
},
{
"id": "kn-050",
"section": "knowledge",
"domain": "geo",
"prompt": "Time zones exist mainly because…",
"options": [
"Countries wanted different work schedules",
"Earth rotates, so the Sun is overhead at different times in different places",
"Airlines requested them",
"Clocks drift on their own"
]
},
{
"id": "kn-051",
"section": "knowledge",
"domain": "geo",
"prompt": "The largest hot desert in the world is the…",
"options": [
"Gobi",
"Sahara",
"Kalahari",
"Mojave"
]
},
{
"id": "kn-052",
"section": "knowledge",
"domain": "geo",
"prompt": "Why does it get colder as you climb a mountain?",
"options": [
"The air thins and holds less heat",
"You get measurably closer to outer space",
"The Sun's rays weaken with height",
"Wind pushes all warm air downhill"
]
},
{
"id": "kn-053",
"section": "knowledge",
"domain": "geo",
"prompt": "The Amazon River runs mostly through which country before reaching the Atlantic?",
"options": [
"Peru",
"Colombia",
"Brazil",
"Venezuela"
]
},
{
"id": "kn-054",
"section": "knowledge",
"domain": "geo",
"prompt": "Which country has the world's largest population?",
"options": [
"China",
"India",
"United States",
"Indonesia"
]
},
{
"id": "kn-055",
"section": "knowledge",
"domain": "art",
"prompt": "In Renaissance painting, \"perspective\" refers to…",
"options": [
"Painting only religious subjects",
"A technique that creates the illusion of depth",
"Using only bright colors",
"Painting entirely from memory"
]
},
{
"id": "kn-056",
"section": "knowledge",
"domain": "art",
"prompt": "A metaphor differs from a simile because a metaphor…",
"options": [
"Compares two unlike things",
"Uses the words \"like\" or \"as\"",
"States the comparison directly, without \"like\" or \"as\"",
"Is always longer"
]
},
{
"id": "kn-057",
"section": "knowledge",
"domain": "art",
"prompt": "The oboe belongs to which instrument family?",
"options": [
"Brass",
"Percussion",
"Strings",
"Woodwind"
]
},
{
"id": "kn-058",
"section": "knowledge",
"domain": "art",
"prompt": "Who wrote the novel \"1984\"?",
"options": [
"Aldous Huxley",
"George Orwell",
"Ray Bradbury",
"Franz Kafka"
]
},
{
"id": "kn-059",
"section": "knowledge",
"domain": "art",
"prompt": "Who painted the ceiling of the Sistine Chapel?",
"options": [
"Leonardo da Vinci",
"Michelangelo",
"Raphael",
"Donatello"
]
},
{
"id": "kn-060",
"section": "knowledge",
"domain": "art",
"prompt": "A traditional sonnet has how many lines?",
"options": [
"10",
"12",
"14",
"16"
]
},
{
"id": "kn-061",
"section": "knowledge",
"domain": "art",
"prompt": "The woodblock print series \"Thirty-six Views of Mount Fuji\", including \"The Great Wave\", was made by…",
"options": [
"Hiroshige",
"Hokusai",
"Utamaro",
"Sesshū"
]
},
{
"id": "kn-062",
"section": "knowledge",
"domain": "art",
"prompt": "\"The Epic of Gilgamesh\", among the oldest surviving works of literature, comes from…",
"options": [
"Ancient Greece",
"Mesopotamia",
"Ancient Egypt",
"The Indus Valley"
]
}
]Generated from the pinned battery file; this page changes only when the battery is re-pinned.