The puzzle this month is REALLY EASY. Everyone should have a go at this (but previous prize winners will be excluded from the draw to give more members a chance to win a book token).

What number is the square of the sum of its digits?

ANSWER

Actually, there are three answers: 0, 1 and 81, though I only expected the answer 81. Well done those who spotted the other two.

Very few answers received this month and no draw for the prize.