Can such a house of cards exist? The number of cards increases level by level in a constant sequence. If you want to prove the puzzle’s answer, you have to show that 100 is a term in this sequence.
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 ...
This puzzle originally appeared in Spektrum der Wissenschaft and was reproduced with permission. Hans-Karl Eder is a German mathematician, educator and author who also works as a MINT ambassador ...
A maths puzzle initially aimed at kids has grown-ups scratching their heads in bewilderment. Regularly exercising to maintain our physical health is well-known, but did you know brain workouts are ...
Brain teasers come in many forms, from riddles to math puzzles, and can vary greatly in difficulty. Some are simple and fun, while others can leave even the sharpest minds stumped for hours.
An "almost impossible" brainteaser has left countless social media users stumped. Brainteasers, puzzles, math problems and o ptical illusions are surging in popularity online, which appears to ...