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

Can you figure out Gabrielle's birthday?

How can you slice a loaf of bread into 8 pieces using only 3 cuts of a knife?

Happy birthday! A riddle where you have to figure out the maximum number of friends present at a party — with a rather strange clue.

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?

Every summer day, the number of water lilies in the pond doubles. When will the pond be full? Think carefully, as this puzzle can be quite challenging.

Imagine you had 1,000 feet — and therefore 1,000 shoes. That’s the case for a very special family: the centipede family. How long will it take to unlace all the shoes?

The ZigZag company’s logo may look simple at first glance, but calculating the area of the blue region can be quite the geometric challenge!

Charles and Stéphanie are having trouble with their watches, which are broken. However, even though both are broken, it’s still possible to find the correct time! How can that be done?

William wants to go play at Gabrielle’s place, who lives in the same building as he does. Using a few clues, figure out which floor Gabrielle lives on.

Luc is a piggy bank collector — everyone has their passions! One morning, he gets tired of hoarding money and decides to empty the contents of all his piggy banks.

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