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The Guardian - Back to homeThe Guardian

Physics puzzles

October 2022

  • Close up view of male hands holding mug of hot coffee.

    Alex Bellos's Monday puzzle
    Can you solve it? Physics puzzles for smart students

    How to cool your coffee and other crucial questions

August 2022

  • tram

    Alex Bellos's Monday puzzle
    Did you solve it? Do you have the mind of an engineer?

    The solutions to today’s puzzles

July 2018

  • Cycling: 105th Tour de France 2018 / Stage 9<br>ROUBAIX, FRANCE - JULY 15: Peloton / Landscape / Fans / Public / during the 105th Tour de France 2018, Stage 9 a 156,5 stage from Arras Citadelle to Roubaix on July 15, 2018 in Roubaix, France. (Photo by Tim de Waele/Getty Images)

    Alex Bellos's Monday puzzle
    Did you solve it? Head-spinning bicycle puzzles

  • Cycling: 105th Tour de France 2018 / Stage 9<br>ROUBAIX, FRANCE - JULY 15: Rick Zabel of Germany and Team Katusha / D’auberchicourt À Écaillon Sector 13 / Cobbles / Pave / Dust / Peloton / during the 105th Tour de France 2018, Stage 9 a 156,5 stage from Arras Citadelle to Roubaix on July 15, 2018 in Roubaix, France. (Photo by Chris Graythen/Getty Images)

    Alex Bellos's Monday puzzle
    Can you solve it? Head-spinning bicycle puzzles

June 2018

  • German Chancellor Angela Merkel visits China<br>epa06761984 German Chancellor Angela Merkel looks at her reflection in a machine mirror while visiting the iCarbonX factory in Shenzhen, Guangdong Province, China, 25 May 2018. Merkel is in China on a state from 24 to 25 May. EPA/ALEKSANDAR PLAVEVSKI

    Alex Bellos's Monday puzzle
    Did you solve it? Mirror, mirror on the wall

  • A woman in costume with “Carine” written on her dress looks in the mirror as prepares for a carnival parade in Rio de Janeiro, Brazil, Sunday March 6, 2011. (AP Photo/Rodrigo Abd)

    Alex Bellos's Monday puzzle
    Can you solve it? Mirror, mirror on the wall

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