Welcome to a puzzle fitness workout aimed at improving your brain power. Boost your mental agility with a session every day in the Mental Gym. Record the time you take to complete each puzzle and you can keep track of your ever-increasing mental strength.
Without using a calculator or writing anything down, carry this sum to the final total. Add the number of squares on a chessboard to the number of white pawns on one. Divide the result by the number of weeks in 63 days. Multiply that by the number of quarters in two dollars.
In the Area
To make this elephant design you will require a square metre of tiles. Each of the individual tiles measures 20 × 20cm, or 400cm2, and you’ll have to cut some tiles to make it work. Can you work out the area of blue tiles you will need?
If the number in each circle is the sum of the two below it, what is the top number?