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Puzzle 17 


How many squares of any size on this chessboard do not contain a rook?

Rooks On C3, C6, F3, F6

Puzzle Copyright © Kevin Stone

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Puzzle 18 


Here is a well known proverb with the consonants removed. What is the proverb.
A -i-- i- --e -a-- i- -o--- --o i- --e -u--.

Puzzle Copyright © Kevin Stone

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Puzzle 19 


Can you find three consecutive prime numbers …

… which total 190,747 when multiplied together?

Puzzle Copyright © Kevin Stone

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Puzzle 20 


Can you find the country hidden in the following paragraph:

The local habitat around a railway track can be very interesting. For example, supporting the track is a sleeper, under which you can find the lesser-spotted great weevil.

Puzzle Copyright © Kevin Stone

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