Puzzle 1
What animal comes next in this sequence:
dog rooster monkey sheep horse snake ?
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Answer
Dragon.
From the Chinese calendar in reverse order.
Puzzle 2
Which month comes next in this sequence:
July June March May ?
Puzzle Copyright © Kevin Stone
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Hint
Look at the first letters.
Answer
November.
This is the next month in alphabetical order:
April, August, December, February, January, July, June, March, May, November, October, September.
Puzzle 3
Can you find three consecutive prime numbers …
… that equal 409,457 when multiplied together?
Puzzle Copyright © Kevin Stone
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Hint
The cube root of the given number is a good starting point.
Answer
71, 73, 79.
Reasoning
The cube root of 409,457 is around 74.
The closest consecutive prime numbers to 74 are: 61, 67, 71, 73, 79, 83, 89, 97.
Using a calculator, it is quickly seen that the answer can only be found using 71, 73 and 79.
Puzzle 4
I have a bottle and a straw which cost me 60 pence. The bottle cost 10 pence more than the straw. What does each item cost?
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Answer
The bottle cost 35 pence and the straw cost 25 pence.
