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PRIZ Riddles

Put your engineering intuition to work.

Short, sharp challenges designed to make you pause, reason, and see the problem differently.

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Riddle of the week New

Logic • Easy

Three switches. One trip.

A simple room, three identical switches, and one chance to observe. Can you extract enough information?

Every problem rewards a different way of thinking.

Riddle #02 • Systems thinking 5 min Hard

The factory bottleneck

A line is slow, every station looks busy, and adding people does not help. Where is the constraint?

More than a brain teaser.

Practice the habits behind better problem solving.

Each explanation connects the answer to a practical thinking principle you can use on real engineering challenges.

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