Puzzle 1
How many squares, of any size, do not contain a rook?
Puzzle Copyright © Kevin Stone
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Hint
How many 2 x 2 squares are there?
Answer
There are 128 squares without a rook.
Reasoning
There are 62 squares of size 1 x 1.
There are 41 squares of size 2 x 2.
There are 18 squares of size 3 x 3.
There are 6 squares of size 4 x 4.
There is 1 square of size 5 x 5.
Giving a total of 62 + 41 + 18 + 6 + 1 = 128 squares.
Puzzle 2
Can you find the country hidden in the following sentence:
Alex's aches and pains felt worse because of swollen glands that had flared up during the night, perhaps a tonic would help?
Puzzle Copyright © Kevin Stone
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Hint
The country spans more than one word.
Answer
England.
Alex's aches and pains felt worse because of swollEN GLAND s that had flared up during the night, perhaps a tonic would help?
Puzzle 3
If 7 ingots of IRON weigh 112 tonnes, 4 ingots of COBALT weigh 104 tonnes and 3 ingots of GOLD weigh 54 tonnes.
How heavy are 5 ingots of TIN?
Puzzle Copyright © Kevin Stone
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Hint
Start by looking at the consonants and vowels (AEIOU).
Answer
65 tonnes.
Vowels (AEIOU) are worth 3 and consonants are worth 5, added together and then multiplied by the number of ingots.
So TIN has 1 vowel (worth 3) and 2 consonants (worth 10).
Added gives 13, then multiplied by 5 ingots = 65.
Puzzle 4
Using the letters EEEEGGLLOOSS complete this grid. The grid reads the same across as down.
Note: this puzzle is not interactive, and the squares cannot be clicked.
Puzzle Copyright © Kevin Stone
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Hint
One of the words begins with the letter S.
Answers
D
O
G
S
O
G
L
E
G
L
E
E
S
E
E
K
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