Some notion of the complexity of this question can be gained from the following puzzle invented by the British puzzle expert Henry Ernest Dudeney. Divide a rectangular sheet of paper into eight ...

Move three matchsticks around so that the coin is inside the house. You cannot move the coin, and the house must have exactly the same shape as before.

Apparently, the answer is ¼ as 2 divided by 8 is 0.25. Advert But this isn’t the first time people have been tripped up when it comes to math. A puzzle circulated online a while back amid claims that ...

Discover the features of angles, triangles and quadrilaterals!

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