Brainteasers Interview Questions
Classic brainteasers test structured problem-solving under pressure. These cover the logic, estimation, and lateral-thinking puzzles that recur in trading interviews.
37 brainteasers questions · 10 free to practise now.
- Ants on a triangleEasyProbabilityBrainteasersView →
- Pigeonhole by monthEasyCombinatoricsBrainteasersView →
- Rope around the EarthEasyBrainteasersView →
- Three switches, one bulbEasyBrainteasersView →
- 1000 bottles, one poisonedMediumBrainteasersView →
- 25 horses, 5 tracksMediumBrainteasersView →
- Bridge and torchMediumBrainteasersView →
- One hundred light bulbsMediumBrainteasersView →
- Two guards, two doorsMediumBrainteasersView →
- Two ropes, 45 minutesMediumBrainteasersView →
- Angle at 3:15MediumBrainteasers Premium
- Average salary, kept privateMediumBrainteasersStatistics Premium
- Clock hands overlapMediumBrainteasers Premium
- Coin-pile NimMediumBrainteasersMarket Making & Betting Games Premium
- Eight coins, one lightMediumCombinatoricsBrainteasers Premium
- Fox, goose, beans crossingMediumBrainteasers Premium
- Frog in the wellMediumBrainteasers Premium
- Nine coins, one heavyMediumCombinatoricsBrainteasers Premium
- Regression to the meanMediumBrainteasersStatistics Premium
- Rice on the chessboardMediumBrainteasers Premium
- Smallest pile for three then fourMediumBrainteasers Premium
- The missing dollarMediumBrainteasers Premium
- Two trains and a flyMediumBrainteasers Premium
- Ages from product and sumHardCombinatoricsBrainteasers Premium
- Bertrand's chordHardProbabilityBrainteasers Premium
- Blue-eyed islandersHardBrainteasers Premium
- Defective stack of coinsHardCombinatoricsBrainteasers Premium
- Handshakes at a dinner partyHardCombinatoricsBrainteasers Premium
- Hats in a lineHardBrainteasers Premium
- Hats with 100 colorsHardBrainteasers Premium
- Prisoners and the boxesHardProbabilityBrainteasers Premium
- Prisoners and the light switchHardBrainteasers Premium
- The racing camelsHardBrainteasers Premium
- Three-jug measuringHardBrainteasers Premium
- Triangle that swallows the centerHardProbabilityBrainteasers Premium
- Twelve balls, one oddHardBrainteasers Premium
- Two eggs, 100 floorsHardBrainteasers Premium
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