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BrainTwister #31: Fold and cut

Can you solve this week’s logic puzzle? Plus our quick quiz and the answer to last week’s problem

By Katie Steckles

31 July 2024

New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

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#31 Fold and cut

set by Katie Steckles

Imagine a piece of paper in a portrait (or vertical) orientation. If you want to make this puzzle more challenging, this imaginary piece of paper is all you need, otherwise, you can always try with a real one.

If you fold the paper in half twice (first down, then across), and then cut a small piece off each corner, how many holes will you make through the paper?

What about if you make three folds (down, then across, then down) before snipping the corners off? How many holes now?

Is there a…

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