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While hiking in the mountains, Logan passed the same spot at the same time—twice. He’s certain of it! But how?

Quick! How can you spot the bronze ring in just three weighings on a balance scale? Luckily for him, Mr. Bolzano is a mathematician and knows exactly how to do it! But how does he do it?

In preparation for a concert, five girls decide to line up to buy tickets. But in what order are they standing?

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

It’s up to you to figure out which instrument each member of the rock band plays. To do so, use your logic.

Truth or lie? Help Mathilda choose the box that will land her the new job.