A tall penguin with a group of young chicks is visible in the foreground. Behind them, there are three large polar bears, ...

Spot the hidden penguin among the ducks in this optical illusion and test your observation skills in 15 seconds ...

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The Telegraph has launched a new daily game, The 1% Club based on the TV show – created by Dean Nabarro and Andy Auerbach at Magnum Media and adding to its portfolio of brain-teasers.

Think you’re good at word puzzles? Test yourself with this quiz challenge where players try to solve tricky visual clues and hidden phrases. Watch along, pause to guess, and see if you can figure them ...

Meghnad Saha was nominated for the Nobel Prize five times but never received it. Yet his ionisation equation, decoding how stars shine and what they are made of, became the foundation of modern ...