This isn’t the first time a puzzle like this has gone viral. These short math riddles are a regular feature on social media, ...

Math puzzles are fun, and here’s a tricky one that’s leaving everyone scratching their heads! Can you crack the code behind ...

There are eight theme entries today at 20A, 22A, 43A, 45A, 57A, 67A, 81A and 84A; there’s also a two-part revealer at 105A ...

A math puzzle is a type of brain teaser that tests the reader's critical thinking and problem-solving skills by challenging them to solve a problem. These challenges have the potential to boost ...

Duolingo introduces a chess course with puzzles and mini-matches, making the classic game easy to learn and enjoy.

Smith has two children. At least one of them is a boy. What is the probability that the other child is a boy? Jones has two children. The older one is a girl. What is the probability that the ...

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

SEE ALSO: A math problem for 14-year-olds is stumping the world The question shows a circular puzzle with five numbers in it. There are four corresponding blanks that are meant to be filled in ...

Explore daily insights on the USA TODAY crossword puzzle by Sally Hoelscher. Uncover expert takes and answers in our crossword blog.