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Each month, a new set of puzzles will be posted.  Come back next month for the solutions and a new set of puzzles, or subscribe to have them sent directly to you.

## ARITH-maze puzzle

In the following ARITH-maze puzzle, go to ‘START’ and proceed through this numeric maze, following instructions as provided, until you get to the ‘FINISH’ box. What number did you finish with? ## Feedback

There are more than one way of doing these puzzles and may well be more than one answer.  Please let me and others know what alternatives you find by commenting below.  We also welcome general comments on the subject and any feedback you'd like to give.

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## Get more puzzles!

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## MIND-Xpander Logic puzzles

1.The total weight of a tin and cookies it contains is 2 pounds. After ¾ of the cookies are eaten, the tin and the remaining cookies weigh 0.8 pounds. What is the weight of the empty tin in pounds?

Solution

If ¾ cookies weighs 2.0 – 0.8 or 1.2 pounds, then the remaining ¼ cookies weighs 2.0 – 1.2 or 0.4 pounds and the empty tin then weighs 0.8 – 0.4 or 0.4 pounds

2. Insert + &/or – mathematical operation between each digit or group of digits to satisfy the following expression. Note: There is more than one solution.

8 7 6 5 4 3 2 1 = 36

Solutions:

87 – 65 – 4 – 3 + 21 = 36

8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 36

3. What is twice two thirds of three quarters of ten?

Solution

2 x 2/3 x 3/4 x 10 = (4/3 x 3/4) x 10 = 10

## EQUATE+0 puzzle

Each row, column & diagonal is a mathematical expression or equation and you use the numbers 1 to 9 to complete the equations.   Each number can be used only once.  Find the remaining eight numbers that satisfies all the resulting equations. Note – multiplication (x) & division (/) are performed before addition (+) and subtraction (-).

Solution 