mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2015

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

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

Archive

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