Odd one out
In the following list of five numbers I have consistently replaced digits by letters, with different letters being used for different digits: CAST THE ODD ONE OUT. All but one of those five numbers is a perfect square. What is the numerical value of the odd one out?
WIN 拢15 will be awarded to the sender of the first correct answer opened on Tuesday 29 May. The Editor鈥檚 decision is final. Please send entries to Enigma 1695, New 女生小视频, Lacon House, 84 Theobald鈥檚 Road, London WC1X 8NS, or to enigma@newscientist.com (please include your postal address).
Answer to 1689 What鈥檚 my number?: Amy=6, Bob=7, Carol=8
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The winner Terry Lovekin of Scarborough, Ontario, Canada
