Puzzle 1
Can you unscramble the letters below to find four cheeses popular in the UK?
c c e d h b h e a e m r s d i h e d i a r r e
Puzzle Copyright © Kevin Stone
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Hint
One of the cheeses is Cheddar.
Answer
Edam, Cheddar, Brie, Cheshire.
Puzzle 2
Last week, I travelled from London to Stoke.
On the first day, I travelled one half of the distance.
On day two, I travelled one third of the remaining distance.
On day three, I travelled three quarters of the remaining distance.
Yesterday I travelled one half of the remaining distance.
I now have 5 miles left to travel.
How far is it from Stoke to London in total?
Puzzle Copyright © Kevin Stone
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Hint
Try working backwards.
Answer
120 miles.
Reasoning
I now have 5 miles left to travel, so I must have travelled 5 miles yesterday.
At the end of Day 3, I had 10 miles left to travel, so I must have had 40 miles left at the start of the Day 3.
At the end of Day 2, I had 40 miles left to travel, so I must have had 60 miles left at the start of the Day 2.
At the end of Day 1, I had 60 miles left to travel, so I must have had 120 miles left at the start of the Day 1.
Double-Checking
On the Day 1, I travelled 60 miles, leaving 60 miles.
On Day 2, I travelled 20 miles, leaving 40 miles.
On Day 3, I travelled 30 miles, leaving 10 miles.
Yesterday, I travelled 5 miles, leaving 5 miles.
Puzzle 3
What word is missing from this sequence:
begin · inch · channel · elastic · ? · cellar · arisen · end
Puzzle Copyright © Kevin Stone
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Hint
Look closely at the beginnings and the ends of the words.
Answer
Ice.
Each word begins with the last two letters of the previous word.
Puzzle 4
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.
