Free online trivia game for game nights, families, and friends. 4 statements, only 1 is true — can you spot it? No app, no signup, play instantly on any device.https://truthorbluff.com/https://truthorbluff.com/category/animals-wildlife/ocean-life/sharks/https://truthorbluff.com/category/animals-wildlife/ocean-life/sharks/450 million years of evolution made the ocean's most perfect predator.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/animals-wildlife/ocean-life/dolphins/https://truthorbluff.com/category/animals-wildlife/ocean-life/dolphins/They sleep with one eye open, call each other by name, and might be smarter than we think.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/animals-wildlife/ocean-life/octopuses/https://truthorbluff.com/category/animals-wildlife/ocean-life/octopuses/Three hearts, blue blood, nine brains, and the ability to squeeze through almost anything.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/animals-wildlife/popular-pets/dogs/https://truthorbluff.com/category/animals-wildlife/popular-pets/dogs/Humanity's best friend for 15,000 years, and they can smell your emotions.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/animals-wildlife/popular-pets/cats/https://truthorbluff.com/category/animals-wildlife/popular-pets/cats/32 muscles in each ear, 16 hours of sleep a day, and a purr that heals bones.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/animals-wildlife/insects-arachnids/butterflies/https://truthorbluff.com/category/animals-wildlife/insects-arachnids/butterflies/From caterpillar soup to winged masterpiece. One of nature's greatest transformations.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/animals-wildlife/prehistoric-life/t-rex/https://truthorbluff.com/category/animals-wildlife/prehistoric-life/t-rex/The king of the dinosaurs had feathers, a crushing bite, and hilariously tiny arms.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/animals-wildlife/prehistoric-life/flying-reptiles/https://truthorbluff.com/category/animals-wildlife/prehistoric-life/flying-reptiles/Pterosaurs weren't dinosaurs. Some had wingspans wider than a fighter jet.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/science-discovery/space-astronomy/black-holes/https://truthorbluff.com/category/science-discovery/space-astronomy/black-holes/Where gravity is so strong that not even light can escape.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/science-discovery/space-astronomy/mars/https://truthorbluff.com/category/science-discovery/space-astronomy/mars/The Red Planet has the tallest mountain and deepest canyon in the solar system.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/science-discovery/space-astronomy/the-moon/https://truthorbluff.com/category/science-discovery/space-astronomy/the-moon/Footprints there will last 100 million years, because there's no wind to blow them away.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/science-discovery/space-astronomy/the-visible-universe/https://truthorbluff.com/category/science-discovery/space-astronomy/the-visible-universe/93 billion light-years across, two trillion galaxies, and expanding faster than light.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/science-discovery/space-astronomy/the-milky-way-galaxy/https://truthorbluff.com/category/science-discovery/space-astronomy/the-milky-way-galaxy/Our home galaxy: 100,000 light-years across, hundreds of billions of stars, and a supermassive black hole at its heart.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/science-discovery/space-astronomy/stars/https://truthorbluff.com/category/science-discovery/space-astronomy/stars/Born in nebulae, fusing 1.3 trillion pounds (600 billion kg) of hydrogen per second, dying as white dwarfs, neutron stars, or black holes. The engines of the universe.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/science-discovery/human-body/the-brain/https://truthorbluff.com/category/science-discovery/human-body/the-brain/100 billion neurons, unlimited storage capacity, and it uses more energy than any other organ.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/science-discovery/human-body/the-heart/https://truthorbluff.com/category/science-discovery/human-body/the-heart/It beats 100,000 times a day and pumps enough blood to fill a swimming pool every week.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/science-discovery/human-body/bones-skeleton/https://truthorbluff.com/category/science-discovery/human-body/bones-skeleton/You were born with 300 bones, but adults only have 206. Where did the others go?Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/science-discovery/physics-particles/the-standard-model/https://truthorbluff.com/category/science-discovery/physics-particles/the-standard-model/Seventeen fundamental particles describe everything you've ever seen, touched, or breathed.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/science-discovery/physics-particles/cern-and-the-lhc/https://truthorbluff.com/category/science-discovery/physics-particles/cern-and-the-lhc/A 27 km ring under France and Switzerland where protons collide at 99.9999991% the speed of light.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/science-discovery/physics-particles/matter-and-antimatter/https://truthorbluff.com/category/science-discovery/physics-particles/matter-and-antimatter/Every particle has an evil twin, and the universe somehow ended up with more of one than the other.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/science-discovery/physics-particles/the-speed-of-light/https://truthorbluff.com/category/science-discovery/physics-particles/the-speed-of-light/299,792,458 meters per second is more than a speed limit. It's the cosmic rule nothing with mass can break.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/science-discovery/physics-particles/relativity-and-motion/https://truthorbluff.com/category/science-discovery/physics-particles/relativity-and-motion/Bounce a tennis ball. By the time it lands, you've moved millions of miles. Welcome to reference frames.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/science-discovery/physics-particles/gravity-and-gravitational-waves/https://truthorbluff.com/category/science-discovery/physics-particles/gravity-and-gravitational-waves/Einstein bent spacetime. LIGO heard the ripples. The graviton, if it exists, has eluded every detector ever built.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/science-discovery/physics-particles/the-nature-of-mass/https://truthorbluff.com/category/science-discovery/physics-particles/the-nature-of-mass/Atoms are 99.9999% empty space. 99% of your weight is binding energy. Mass is what energy looks like when it stops moving.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/science-discovery/physics-particles/quantum-mechanics/https://truthorbluff.com/category/science-discovery/physics-particles/quantum-mechanics/The framework that breaks classical intuition: wave-particle duality, uncertainty, entanglement, and the strange machinery that makes the universe possible.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/science-discovery/earth-science/volcanoes/https://truthorbluff.com/category/science-discovery/earth-science/volcanoes/There's a supervolcano under Yellowstone, and over 1,500 potentially active volcanoes worldwide.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/science-discovery/earth-science/lightning/https://truthorbluff.com/category/science-discovery/earth-science/lightning/Five times hotter than the surface of the Sun, and it strikes Earth 100 times every second.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/history-civilization/ancient-world/ancient-egypt/https://truthorbluff.com/category/history-civilization/ancient-world/ancient-egypt/The Great Pyramid was the tallest building on Earth for 3,800 years.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/history-civilization/ancient-world/roman-empire/https://truthorbluff.com/category/history-civilization/ancient-world/roman-empire/They had concrete better than ours, heated floors, and a road network that lasted millennia.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/history-civilization/exploration-adventure/pirates/https://truthorbluff.com/category/history-civilization/exploration-adventure/pirates/Real pirates were nothing like Captain Jack Sparrow. They were far more interesting.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/history-civilization/exploration-adventure/vikings/https://truthorbluff.com/category/history-civilization/exploration-adventure/vikings/They never wore horned helmets, but they did reach North America 500 years before Columbus.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/geography-places/extreme-environments/deepest-oceans/https://truthorbluff.com/category/geography-places/extreme-environments/deepest-oceans/The Mariana Trench is so deep that if you dropped Mount Everest into it, the peak would still be underwater.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/geography-places/extreme-environments/tallest-mountains/https://truthorbluff.com/category/geography-places/extreme-environments/tallest-mountains/Everest isn't actually the tallest mountain. It depends on how you measure.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/geography-places/amazing-places/wonders-of-the-world/https://truthorbluff.com/category/geography-places/amazing-places/wonders-of-the-world/Only one of the original Seven Wonders still exists. Can you guess which?Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/food-drink/sweet-science/chocolate/https://truthorbluff.com/category/food-drink/sweet-science/chocolate/It was currency, medicine, and a bitter drink before it was ever a candy bar.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/food-drink/sweet-science/honey-bees/https://truthorbluff.com/category/food-drink/sweet-science/honey-bees/Honey never expires. Archaeologists found 3,000-year-old honey that's still edible.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/food-drink/ingredients-origins/hot-peppers-spice/https://truthorbluff.com/category/food-drink/ingredients-origins/hot-peppers-spice/The world's hottest pepper can literally make you hallucinate.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/arts-entertainment/sports/olympic-records/https://truthorbluff.com/category/arts-entertainment/sports/olympic-records/From ancient Greece to modern Games, an authoritative tour through Olympic history's strangest records.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/arts-entertainment/sports/unusual-sports/https://truthorbluff.com/category/arts-entertainment/sports/unusual-sports/Cheese rolling, wife carrying, and chess boxing. The world's strangest competitions.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/arts-entertainment/music/instrument-origins/https://truthorbluff.com/category/arts-entertainment/music/instrument-origins/The first instruments were made from bones 40,000 years ago.Tue, 28 Apr 2026 04:16:39 GMThttps://truthorbluff.com/category/arts-entertainment/music/music-records/https://truthorbluff.com/category/arts-entertainment/music/music-records/The longest song ever recorded takes 639 years to play.Tue, 28 Apr 2026 04:16:39 GMT