Can you design a new shape for the twenty-eight squares and arrange
the numbers in a logical way? What patterns do you notice?
In a square in which the houses are evenly spaced, numbers 3 and 10
are opposite each other. What is the smallest and what is the
largest possible number of houses in the square?
Exactly 195 digits have been used to number the pages in a book.
How many pages does the book have?
Re-numbering the other way gives 82 under 91, under 89 it's 71 and under 80 it's 45.
There are no numbers in the same place with the re-numbering.
But again well done for trying this unusual harder challenge that is purely based on visualising.
If anyone has a further try do send in your solutions.