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.
This maths puzzle for kids has been leaving adults confused. We all know that it's important to keep our bodies healthy by exercising regularly, but did you know you also have to give your brain ...
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 ...
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 ...
You have only 9 seconds to find the solution to this puzzle. Don't panic, math wizards! With a little lateral thinking and creative problem-solving, you can conquer this amazing math puzzle and ...
Are you a fan of riddles or perhaps a classic math puzzle gets your brain buzzing? Fancy yourself a genius in the realm of brain teasers or an aficionado of challenging quizzes? Well, get ready to ...
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 ...