skip to main content


Random Puzzles 


?

Puzzle 1 


Sam takes 20 days to build a wall.

Taylor and Kelly each take 10 days to build a wall.

How long will it take the three of them to build a wall if they work together?

Puzzle Copyright © Kevin Stone

workings hint answer print

?

Puzzle 2 


If cat and a half can catch a mouse and a half in a day and a half how many mice can 3 cats catch in 3 days?

workings hint answer print

?

Puzzle 3 


By changing the second letter of each of the words below, can you make another valid word?

You have to change each word such that the second letters will reveal a ten-letter word when read downwards.

Therefore, what now reads 'craihruane' will be a real word.
icon crew farm oily chop arid fund wait gnat tear

Puzzle Copyright © Kevin Stone

workings hint answers print

?

Puzzle 4 


What always weighs the same …

… no matter how large it is?

workings hint answer print