Test your brain power! You have an IQ above 140 if you can solve this math puzzle in 11 seconds or less. Go ahead and test ...

Do you love number puzzles and mathematical challenges? This puzzle game will test your ability to recognize patterns, think logically, and apply mathematical reasoning. Only a few have cracked ...

Five years ago on this day, a seemingly straightforward puzzle took the world by storm. A picture circulating online challenged people to determine the missing number from what looked like a simple ...

Brain teasers are a fun way to test one's thinking skills. These puzzles give the brain a quick workout. A recent challenge ...

The missing number is 1,620. The digits in the tens places (green in the figure below) of the numbers in columns 1, 2, 4 and 5 are added together. The total value is represented by the digits in the ...

Among the natural numbers below 100, there are 30 with a special property. Jovan has listed them in the table here. But Jovan made a mistake, and one of these numbers must be replaced. Which number ...