2048. Are Sudokus unique?The short answer is yes! There is no rule that requires Sudokus to have a unique solution. Sudokus can have multiple solutions or...

There are two really easy ways to develop pattern recognition skills: Be born with them. Put in your 10,000 hours. Study nature, art and math. Study (good...

Because names don’t have any other cues attached to them, they often get stored in the brain’s short-term memory (that mostly registers things we hear), t...

There are four fundamental checkmates when one side has only their king and the other side has only the minimum material needed to force checkmate, i.e. (...

When a connected graph can be drawn without any edges crossing, it is called planar . When a planar graph is drawn in this way, it divides the plane into ...

A REBUS is a picture representation of a name, work, or phrase. Each “rebus” puzzle box below portrays a common word or phrase. Can you guess what it is? ...

Joint family: Joint families are composed of sets of siblings, theirs spouses, and their dependent children. How does God define family?def: The family is...

Sudoku does not require luck. Sudoku does not require guessing. In fact, when solving Sudoku puzzles, you’re better off NOT guessing at all. Sudoku is a l...

Each dice, particularly d20 (20-sided polyhedral dice) and d8 (8-sided polyhedral dice) is often unbalanced, and more likely to roll certain numbers. Alth...

Number Series is a sequence formed out of numbers. In the number series questions, we will have to detect the rules that result in the formation of a numb...