Blog

Difficulty: Tricky

Dennis and Richard went on a tour of a chocolate factory. At the end of the tour, they went to the reject room, where the tour guide gave Dennis a strange block of chocolate.

Drawing of an oddly shaped chocolate block
Richard asked Dennis to give him half. Dennis thought for a long while, and then with a knife and a cup of hot water, carefully cut the block into two identical pieces.

Can you work out where Dennis cut the block? The two pieces must be the same size and the same shape.

Scroll down or click for a hint, or the answer!

brain icon

 

Brainteaser hint

Dennis didn’t break any of the squares in half.
brain icon

 

Brainteaser answer

Drawing of two oddly shaped blocks of 6 pieces of chocolate.

More from this newsletter

Creating a vaccine for coronavirus
Infinitely scaling sherbet recipe
A taste of science – a quick quiz

For more brainteasers and puzzles for kids, subscribe to Double Helix magazine!

Subscribe now! button

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

By submitting this form, you give CSIRO permission to publish your comments on our websites. Please make sure the comments are your own. For more information please see our terms and conditions.

Why choose the Double Helix magazine for your students?

Perfect for ages 8 – 14

Developed by experienced editors

Engaging and motivating

*84% of readers are more interested in science

Engaging students voice