Practice Problems

Master the art of lateral thinking with 18 curated riddles.

Riddle #1
MEDIUM

The Bridge at Midnight

GoogleAmazonLogic
Riddle #2
EASY

Burning Ropes of Time

MicrosoftMathLateral Thinking
Riddle #3
EASY

The Three Light Switches

GoogleAdobeLateral Thinking
Riddle #4
MEDIUM

Heavy Gold Gold coins

AmazonMathLogic
Riddle #5
EASY

The Lily Pad Exponential Pond

MetaMathPattern Recognition
Riddle #6
MEDIUM

The Monty Hall Dilemma

MetaLogicMath
Riddle #7
MEDIUM

Measuring Water with Pitchers

AmazonMathLogic
Riddle #8
HARD

The Poisoned Wine Bottles

GoogleMathLogic
Riddle #9
MEDIUM

The Two Sand Hourglasses

AdobeLogicLateral Thinking
Riddle #10
HARD

The Infinite Hallway of Lockers

MicrosoftMathPattern Recognition
Riddle #11
EASY

Ferrying Animals Across the River

MetaLogicLateral Thinking
Riddle #12
HARD

Estimating Piano Tuners in Chicago

GoogleEstimationLogic
Riddle #13
HARD

The Outbreak of Blue Eyes

MetaLogicLateral Thinking
Riddle #14
MEDIUM

The Burning Desert Crossing

AmazonLogicEstimation
Riddle #15
EASY

The Patterns in the Sequence

AdobePattern RecognitionMath
Riddle #16
MEDIUM

The Marble Riddle

GoogleAmazonLogicLateral ThinkingMath
Riddle #17
MEDIUM

The Poisoned Wine

GoogleAdobeEstimation
Riddle #18
MEDIUM

The Bridge and Torch

GoogleMicrosoftLateral Thinking