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Who's Lying?

Can you see through the lie and find what colour Sophie’s sweater is?

Frederique and Sophie are friends. Can you discover who’s lying and determine what colour Sophie’s sweater is?

This puzzle is an excellent introduction to problem-solving through logic. It’s interesting to see the different strategies that can be used and the different ways the problem can be approached.


  • This puzzle introduces students to logical reasoning. It can be followed by “Two Lies, One Truth.”

  • Planning notes