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Puzzle 57 


What letter completes this square in the most logical manner?

Note: this puzzle is not interactive, and the squares cannot be clicked.

Puzzle Copyright © Kevin Stone

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Puzzle 58 


My local greengrocer is a would-be mathematician.

She likes to arrange the apples in nice rows.

When she lays the apples in rows of 3, she has one left over.

And, when she lays them in rows of 5, she also has one left over.

Remarkably, she also has one left over when she arranges them in rows of 7 and 9.

But 11 seems to be the magic number, because in rows of 11 there are no apples left over.

How many apples does she have?

Puzzle Copyright © Kevin Stone

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Puzzle 59 


What comes next in this sequence:

elgnairt  erauqs  nogatnep  nogaxeh  nogatpeh  ?

Puzzle Copyright © Kevin Stone

workings hint answer print

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Puzzle 60 


Start in the bottom left corner and move either up or right, one square at a time, using the numbers and the mathematical signs along the way. What is the largest total you can make?

Note: this puzzle is not interactive, and the numbers cannot be clicked.

Puzzle Copyright © Kevin Stone

workings hint answer print