There's a "Code Theory" which argues that "the hex is an in-universe broadcast code for some machine", a "Numbers Theory" ...

Knowledge and information extracted from the genomic puzzle will be embedded in new varieties that will be made available to farmers in the coming years. Pasta shaped like a DNA helix with binary code ...

Think you have sharp eyes and a strong attention span? This optical illusion puzzle will put your brain to the test. Hidden ...

The city is hosting the 2025 contest, after Switzerland’s Nemo won last May in Sweden with The Code, which explored them ...

I n a world saturated with information and short attention spans, brain teasers have carved out a unique niche as both ...

Our today's brain teaser is a colourful yet tricky visual puzzle: Can you spot the number 17 hidden in a colony of 21s and 27s? At first glance, this illusion appears to be a repetitive pattern of ...

Play The Telegraph’s full range of puzzles, including Crosswords, Sudoku, PlusWord and Sorted, with thousands more brainteasers in our archive ...

I look forward to meeting Pope Leo XIV. It will be a very meaningful moment!” The average number of ballots it has taken to be elected over the past 10 conclaves was 7.2. Francis was elected ...

Want access to more than one puzzle a day? Subscribe to the i Digital Subscription to unlock unlimited access to 27 daily puzzles online and in the app, plus additional content and exclusive ...