Puzzle 53
Below, 10 nine-letter words have been broken into chunks of three letters.
The chunks have been moved around, no chunk is used twice, and all of the chunks are used.
Can you find the 10 words?
tin som mea and all ple
sca eth ile rbr man ssl
pol rec hai yes gra wat
ing ter ice eap erf ate
nwh pin obs ush row day
Puzzle Copyright © Kevin Stone
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Hint
One of the words is waterfall (wat + erf + all).
Answers
som + eth + ing = something
hai + rbr + ush = hairbrush
gra + ssl + and = grassland
pin + eap + ple = pineapple
pol + ice + man = policeman
mea + nwh + ile = meanwhile
wat + erf + all = waterfall
sca + rec + row = scarecrow
yes + ter + day = yesterday
obs + tin + ate = obstinate
Puzzle 54
How many squares of any size on this chessboard 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 93 squares without a rook.
Reasoning
There are 60 squares of size 1 x 1.
There are 33 squares of size 2 x 2.
Giving a total of 60 + 33 = 93 squares.
Puzzle 55
If …
7 /28 of 64 is 16,
and 9 /12 of 100 is 75,
and 3 /9 of 33 is 11,
what is 5 /15 of 45?
Puzzle Copyright © Kevin Stone
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Hint
This puzzle is perhaps easier than it first appears.
Answer
15.
Using normal mathematics!
5 /15 of 45 = 1 /3 of 45 = 15.
Puzzle 56
Can you highlight exactly three numbers that add to 17?
Note: this puzzle is not interactive, and the numbers cannot be clicked.
Puzzle Copyright © Kevin Stone
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Hint
You have to highlight three numbers .
Answer
2 + 13 + 2 = 17.
The puzzle didn't ask for three digits to be highlighted!
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