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Arithmetic
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A Shoe-ful Family

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?

Riddle

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Zigzag

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!

Riddle

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The Building

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.

Riddle

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Right On Time

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?

Riddle

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Luke's Piggy Banks

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.

Riddle

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Pascal's Fish

Pascal was lucky enough to go fishing with his father during the family vacation. Take on the challenge and figure out how long he was on vacation — it all depends on how many fish he caught!

Riddle

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The Furibarde

The Furibarde is trying to catch up with the Lapgourou. Will the Furibarde succeed? In how many seconds?

Riddle

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Helen's Pots

Helen is camping. She has a 3L pot and a 5L pot, but she needs exactly 4L of water.

Riddle

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The Long Winter

Augustine went through a lot of logs this winter. Was the winter long? Only you can find out!

Riddle

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Mathias' Candles

Mathias is an experienced waiter. He knows he must light one candle per hour to create a warm atmosphere. What is the number of hours during which exactly three candles will be burning at the same time?

Riddle

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10 Coins

Uncle Bob wants to share his fortune equally. You’ll have to figure out how he did it!

Riddle

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Benjamin's Trip

Help Benjamin and his mother get all the shopping done before leaving for vacation. Careful! They don’t want to visit the same place twice!

Riddle