A variation of a puzzle called the “pick-up sticks problem” asks the following question: If I have some number of sticks with random lengths between 0 and 1, what are the chances that no three of ...

Being able to guess the correct pattern in a puzzle shows that your cognitive and mental abilities are sharp. Such puzzles help in improving problem-solving skills, boost your memory, promote ...

Prime numbers are the ones that have only two factors: 1 and itself. Credit: Ssindhwani / Wikimedia Commons Prime numbers are those divisible only by themselves and by one. Despite their apparent ...