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Brain Teasers and Puzzles 


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Puzzle 829 


Yesterday I was asked to buy some stamps.

In the land of BrainBashers, stamps are available in denominations of 4p, 5p, 7p, 12p, and 19p (just the five different values).

For three denominations of stamps, I was asked to buy six of each. For the other two denominations. I was asked to buy ten of each.

Unfortunately, I forgot which I was supposed to buy six of, and which to buy ten of!

Luckily I had been given the exact money required to buy the stamps, £3.50, so the shopkeeper was able to work out the stamps I needed.

Which stamps did I have to buy?

Puzzle Copyright © Kevin Stone

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Puzzle 830 


My BrainBashers electronic world atlas has developed another fault, I did a listing of miles from England to particular countries and here is the result:
Chile     800 miles
Wales   4,200 miles
France  1,100 miles
Italy   3,400 miles

How far away did it list Scotland as?

Puzzle Copyright © Kevin Stone

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Puzzle 831 


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

workings hint answer print

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Puzzle 832 


all matchstick puzzles

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

5 + 5 = 4

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

workings hint answer print