Some say the reason most manhole covers are round is that a circle cannot fall through a smaller circular hole. Which of ...

Stage 5: Justify thinking. A vital habit that many students need to solidify is recontextualizing after they solve ...

Puzzle for Testing Your IQ: This mind puzzle is a fun way to test your intelligence level based on the answer you give while solving the mathematical brain teaser. Under these types of IQ puzzles, you ...

A challenging brainteaser tests critical thinking with a math problem of finding the missing value: 3 - 3 x 6 + 2 = ?. Solvers have seven seconds to use the BODMAS rule. Frequent practice of such ...

Only highly intelligent readers can solve this math puzzle in 6 seconds. Test your IQ and problem-solving skills now!

A math puzzle is a type of brain teaser that tests the reader's critical thinking and problem-solving skills by challenging ...

Marijn Heule turns mathematical statements into something like Sudoku puzzles, then has computers go to work on them. His ...