mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2018

5 December

I make a book by taking 111 sheets of paper, folding them all in half, then stapling them all together through the fold. I then number the pages from 1 to 444.
Today's number is the sum of the two page numbers on the centre spread of my book.
Tags: numbers, books

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2024

Advent calendar 2023

Advent calendar 2022

Advent calendar 2021


List of all puzzles

Tags

chess differentiation hexagons integration odd numbers square grids percentages square numbers median menace cryptic crossnumbers cryptic clues digital products doubling coins square roots numbers neighbours colouring consecutive numbers folding tube maps scales polynomials sequences digital clocks sums crosswords taxicab geometry quadrilaterals determinants christmas perimeter integers mean multiples ellipses elections floors number proportion squares products chalkdust crossnumber coordinates indices dice fractions crossnumbers unit fractions cube numbers sport geometric means regular shapes triangle numbers star numbers algebra matrices digits numbers grids advent triangles complex numbers factors money tiling games partitions symmetry powers irreducible numbers palindromes polygons addition angles grids ave pentagons shapes gerrymandering sum to infinity prime numbers quadratics speed graphs axes even numbers dominos binary lines rugby calculus albgebra means sets factorials cubics parabolas geometry logic division multiplication volume medians people maths shape range bases chocolate tangents routes perfect numbers decahedra expansions remainders trigonometry consecutive integers dodecagons surds cards area planes wordplay time averages 2d shapes functions spheres combinatorics tournaments probability geometric mean probabilty rectangles arrows the only crossnumber books pascal's triangle circles dates 3d shapes balancing clocks

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2025