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Here is a figure with 11 matchsticks. Move two matchsticks to make eleven squares (of any size). All matchsticks must be used.
MIND-Xpander (Circles in a Rectangle Puzzle – Level 2)
The diagram below shows two equal and touching circles completely inside a rectangle as shown below. The circles have the same radius, are not over-lapping and each touches two sides of the rectangle, as shown. What are the radii of the circles if the dimensions of the rectangle are 48cm by 54cm? Note: The diagram is not drawn to scale.
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Last month's solutions
HEXAGON-numeric puzzle (Level 1)
Fit the numbers 1 – 6 in each hexagon and where the hexagon segments touch each other, the numbers in these segments will be the same. No number can be repeated in a hexagon.
HEXAGON-numeric puzzle (Level 3)
Fit the numbers 1 – 6 in each hexagon and where the hexagon sides touch each other, the numbers in these 2 segments will be the same. No number can be repeated in a hexagon. The numbers in the shaded areas are the sum of the numbers in the 2 or 4 segments that they side with. The numbers in the ‘Input’ and ‘Output’ boxes are the sum of the numbers in the 3 triangular segments that they side with. The numbers in the ‘Sum’ boxes are the sum of the numbers in the 4 segments that they side with. Solve the puzzle and find the Output’ number (?).