HOMEMATHS MEDICINE BOOKSMT and other GEOMETRY TASKSCHALLENGES etc
The acclaimed pocket books from Professor Smudge Published by DEXTER Graphics
This is our original set of GEOMETRY tasks:
they don't require a lot of background knowledge,
but you might need to persevere - and hope for a sudden insight.

You can see the individual tasks here:

A B C D E F G H I J K L M
N O P Q R S T U V W X Y Z

Buy now, for only 52p:
a high resolution pdf file of all 26 of these GEO A–Z tasks