TechnologyBeginner
Everyday Inventions That Changed the World
Discover the surprising origins behind the simple items you use every day.
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Challenge yourself
Knowledge raids
Choose a subject, answer one question at a time, and learn from the explanation behind every correct response. No account or timer is required.
Browse by subject
Start with an arena you know—or explore a new one.
Each topic page brings its quizzes and learning guides together, making it easy to test what you know and then read further.
All challenges
Find your next quiz
These are the current published raids. They’re arranged for quick scanning on mobile, with the most recent material near the top and enough spacing to keep each card readable.
GeographyIntermediate
Extreme Weather Phenomena
Test your knowledge of tornadoes, hurricanes, and the wild forces of our atmosphere.
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HistoryIntermediate
Famous Heists & Unsolved Mysteries
Dive into the world's most audacious art thefts, disappearances, and unsolved crimes.
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TechnologyIntermediate
How AI Actually Learns
Demystify algorithms, neural networks, and how machines are taught to 'think'.
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ScienceIntermediate
Animal Intelligence
From puzzle-solving octopuses to tool-using crows, explore the minds of the animal kingdom.
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LogicIntermediate
Cognitive Biases: Why We Think the Way We Do
Test your logic against the mental shortcuts and flaws built into the human brain.
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LogicIntermediate
Cryptography: The Art of Secret Writing
From ancient Roman ciphers to modern encryption, test your knowledge of codes.
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HistoryBeginner
Ancient Mythology
Test your knowledge of the gods, heroes, and monsters that defined ancient cultures.
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GeographyIntermediate
World Geography: Natural Wonders
Cross mountains, rivers and deserts in a quick global expedition.
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HistoryBeginner
Ancient Civilizations Starter Raid
Match great civilizations with their innovations, places and legacies.
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TechnologyIntermediate
How the Internet Works
Decode browsers, servers, networks and the web in five minutes.
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ScienceBeginner
The Solar System: Beyond the Basics
Navigate planets, moons and the forces that keep our cosmic neighbourhood moving.
Take the challenge →How a raid works
A short challenge with a useful finish.
ApexRaid presents one question at a time so the interface stays clear on a phone. After choosing an answer, you receive the reasoning before continuing. At the end, your result highlights what you understood and what may be worth reviewing.
Questions with context
We aim for a single defensible answer, plausible options and an explanation that adds more than a green tick.
Designed for learning
There is no countdown pressure. Take time to think, review sources where provided, and follow related articles when you want a deeper explanation.
Learn more about our review process in the Editorial and Corrections Policy.