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Puzzles
Gentle traps and lovely surprises. Anyone can try; almost everyone gets caught once.
14 chapters · 50 curated · 146 from open sources · 347.3 thousand generated
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Chapters
Chapter 1Logic25 problemsChapter 2Lateral thinking13 problemsChapter 3Word problems8 problems · 8,160 practiceChapter 4Arithmetical puzzles45 problemsChapter 5Money puzzles34 problemsChapter 6Age & time puzzles21 problemsChapter 7Measuring & pouring12 problemsChapter 8Weighings8 problems · 100 thousand practiceChapter 9Crossing puzzles0 problems · 18,962 practiceChapter 10Geometrical puzzles8 problemsChapter 11Chessboard puzzles6 problemsChapter 12Magic squares1 problem · 38,000 practiceChapter 13Moving-piece puzzles0 problems · 182.1 thousand practiceChapter 14Strategy15 problems