One string in each of the following pairs can be unraveled into a circle—the so-­called unknot. Which one is it? Show puzzle solution The knots at the top left and the bottom right can be unraveled ...

Brain teasers are excellent puzzle games for providing the brain with an effective mental workout. Math puzzles are a type of brain teaser that requires you to find the missing value. These types of ...

Triangle AOB is drawn within a circle and has an area of 2772 square meters. Points A and B are on the circumference and point O is at the center of the circle. Given AO = OB = x 2 + 4 and AB = 17x + ...

Like Jacob, Seth has a vision. Not of angels, but of 30° –60°–90° triangles. The triangles are drifting down from the Empyrean heaven and forming a large triangle. An infinite number of triangles ...

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 ...

Mastering essential skills can improve performance in Mathematics. When students are equipped with basic skills, their working memories aren’t taxed, and learning can become fun and encouraging.

Anna, Britta and Christina work at a fruit stand at the market. A customer asks them about the prices of apples, pears and peaches. Anna says, “Seven apples and five pears cost the same as six peaches ...

Opposition parties have been trying to finalise a candidate for the Vice Presidential election after addressing concerns raised by the Trinamool Congress, among others. The Mamata Banerjee-led party ...

Brain teasers are like fun little challenges for the mind. They make us think in different ways, question what we know, and give us that satisfying “Aha!” moment when we finally figure them out. While ...

From classrooms to kitchen tables, debates about math education are never far away. Should teachers drill multiplication facts or encourage creative strategies to solve problems? The answer, ...