mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2021

3 December

If you write out the numbers from 1 to 1000 (inclusive), how many times will you write the digit 0?

Show answer

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2025

Advent calendar 2024

Advent calendar 2023

Advent calendar 2022


List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2026