These math puzzles test your brain and critical-thinking ... determining the pattern behind the numbers shown. Answer: 1 and 2. Every number in the bottom row is the number above it minus 3.

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

b_{1,2},b_{1,3}, \ldots, b_{4,5}, b_{5,5})$ for the $25$ dimensional vector representing the light configuration (entries are $1$ if the light at position $(i,j)$ is on, $0$ if off), a strategy vector ...

Unlike Roman, Maya or Iñupiaq numerals, this isn’t a total reimagining of numbers. Instead, it’s an uncanny parallel universe. Any number without zeros retains its old appearance (1,776 is still 1,776 ...