Mode = the most frequently occurring number in the set. (Note: if there are multiple most frequently occurring numbers in a dataset, the mode is not unique. All modes in this puzzle are unique) Range ...

Tristan has an inelastic red rope measuring exactly 12 units in length. On a smooth flat surface, he carefully forms the rope into a perfect sine curve. Find the amplitude a of the sine wave he formed ...

Can you solve this tricky math puzzle 🧮?!! Trump takes calls from kids on Christmas Eve: 'You don't want clean, beautiful coal, right?' The US may have a secret weapon against rising electricity ...

Add Yahoo as a preferred source to see more of our stories on Google. The nine rectangles A, B, C, D, E, F, G, H and I overlap one another. Rectangle A intersects ...

On a chilly January night in 1924, fledgling publisher Richard Simon was having dinner with his Aunt Wixie when she asked if he knew where she could buy a book of crossword puzzles. None existed. At ...

Marijn Heule turns mathematical statements into something like Sudoku puzzles, then has computers go to work on them. His proofs have been called “disgusting,” but they go beyond what any human can do ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

The Artificial Intelligence chatbot, ChatGPT, appeared to improvise ideas and make mistakes like a student in a study that rebooted a 2,400-year-old mathematical challenge. The experiment, by two ...

Draw four lines beginning and ending at the gray points to break this square into pieces that can be rearranged into five identical squares. Bonus: Suppose you can use any number of lines that begin ...

When it comes to buying a puzzle, there are a few things to think about: How big do you want said puzzle to be? Do you want to tackle a 2D puzzle, or attempt a 3D model? And, most importantly, what ...