Answer or Solution : 1. This is a simple matchstick puzzle.
2. Just like "Thinking Out of the Box", the clue for this puzzle is to "Think Within the Box".
3. You can find the solution in just one single step.
4. From the 4 corners of the square place a match stick projecting towards the inside of the box, such that the heads of the match sticks touch the body of the adjacent match sticks.
5. Now you could see 4 triangles and a small inner square within the large outer square, thereby forming a total of 2 squares (including the outer square) and 4 triangles.