Brain teaser: Can you crack the code and find the missing number in the triangle? A popular online math puzzle involves finding a missing number in triangles by using a simple addition rule ...

Imagine a number lock with a three-digit code, and you're given five clues to crack it open. First, one digit is in the correct spot. Second, one digit is right, but it's in the wrong place.

This puzzle game tests mathematical skills and logical thinking as players embark on a journey to unlock a treasure hidden in an uncharted cave. The challenge involves solving a number puzzle with ...

Crack the Code is a codebreaker game for the iPhone and iPod Touch. The computer chooses a sequence of colors and you must try to guess the sequence within a specific number of guesses.

Can they crack your code if they “intercept” your message? Extra: What if the person who intercepts your message knows about Caesar ciphers? Does that make it easier to crack the code?