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Puzzle 17 


All Matchstick Puzzles

Can you make this equation correct by moving exactly one matchstick?

3 + 7 = 18

Note: this puzzle is not interactive, and the matchsticks cannot be moved. The matchstick layouts for each digit are:

Default Digits

Puzzle Copyright © Kevin Stone

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Puzzle 18 


Which word comes next in this sequence:

India · Victor · X-Ray · Lima · Charlie · ?

Puzzle Copyright © Kevin Stone

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Puzzle 19 


A rope swing hangs vertically down so that the end is 12 inches from the ground, and 48 inches from the tree.

If the swing is pulled across so that it touches the tree, it is 20 inches from the ground.

How long is the rope?

Puzzle Copyright © Elliott Line
This puzzle appeared in Mensa's EnigmaSig (198.24) and is used with permission.

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Puzzle 20 


Nursery PlaygroundAll Logic Puzzles

At the local nursery school, I was chatting to my daughter's friends and noticed a number of things.

Frankie has mousy coloured hair and the girl with black hair was wearing a green t-shirt.
Lucy is not blonde and Lauren does not have brown hair, Chloe was wearing a blue t-shirt.
The blonde girl was not wearing red and Lauren was not wearing green.
I can't remember who was wearing a yellow t-shirt.
Can you work out the colours of the t-shirt and hair for each child?

Puzzle Copyright © Kevin Stone

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