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Puzzle 17 


These words have had their vowels (AEIOU) removed, can you replace them to find some animals:
pnd frrt s ln hdghg chth tdpl ttr plr br lprd grff

Puzzle Copyright © Kevin Stone

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Puzzle 18 


I started out on the journey from the forest with a full tank of fuel, 12 gallons exactly.

However, the moment I started out, the fuel tank sprung a leak. I travelled at 50 mph until I ran out of fuel exactly 4 hours later.

I know that the car does 25 miles for each gallon.

How much fuel had I lost through the hole?

Puzzle Copyright © Kevin Stone

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Puzzle 19 


Some months have 30 days, some have 31, but how many have 28 days?

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Puzzle 20 


Fill in the missing numbers with the digits 1 to 9. A diamond shape in the middle means that the four numbers around it add to 20.

Each uses a different way to add to 20, if there is already 1 + 3 + 7 + 9, then there will not be another using the digits 1, 3, 7 and 9 (in any order).

The same digit isn't allowed to touch, even diagonally.

Puzzle Copyright © Elliott Line
This puzzle appeared in Mensa's EnigmaSig (195.08) and is used with permission.

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