One of the things that I love about these seemingly difficult puzzles is that they are really not difficult.
For the most part you don't need much more than some basic maths or English, loads of plain logic and the will to win.

Fun for school, home and quiz nights

In order to cater to most needs the puzzles are presented in printable pdf pages containing 10 questions each.
There is one group of pages containing both the Questions and their answers (Q and A sheet) as well as one with just the questions and a space for answers to be written in (Question sheet).