mscroggs.co.uk
mscroggs.co.uk

subscribe

Puzzles

22 December

Today's number is a palindrome. Today's number is also the number of palindromes between 111 and 11111 (including 111 and 11111).

14 December

What is the only palindromic three digit prime number which is also palindromic when written in binary?

Archive

Show me a random puzzle
 Most recent collections 

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

Sunday Afternoon Maths LXV

Cryptic crossnumber #1
Breaking Chocolate
Square and cube endings

List of all puzzles

Tags

means addition coordinates menace 3d shapes palindromes routes square numbers integers sport cards surds planes mean trigonometry circles coins odd numbers percentages symmetry colouring christmas unit fractions pascal's triangle clocks multiples scales remainders integration volume triangles speed bases perimeter area triangle numbers ave taxicab geometry functions complex numbers graphs balancing calculus 2d shapes quadratics crosswords averages polygons partitions chalkdust crossnumber multiplication cryptic clues shape square roots squares arrows irreducible numbers probability logic indices rectangles parabolas ellipses spheres lines games advent cryptic crossnumbers regular shapes algebra grids differentiation probabilty dice factors hexagons floors prime numbers folding tube maps shapes chess division cube numbers time geometry wordplay fractions doubling angles numbers digits crossnumbers people maths sums proportion dates star numbers sum to infinity perfect numbers rugby factorials money chocolate books sequences number dodecagons

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2019