puzzle

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How big is the bird?

How big is the bird?

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Sharing cake: Solution
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Sharing cakes

A deceptive brain teaser about profit sharing.

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Weighing balls

This puzzle is apparently used in job interviews — would you pass?

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Magic 19: Solution
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Magic 19

Number the dots so that each line of three adds up to 22.

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Creating squares

Be the first to mark the corners of a square to win this game!

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Drips

Here's one of our favourite strategy games.

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Dropping eggs

Stretch your mind with this mess-free egg puzzle.

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Counter logic: Solution
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Counter logic

A logic teaser in honour of George Boole.

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Equal averages

Exploring the five different notions of average.

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