mscroggs.co.uk
mscroggs.co.uk

subscribe

Puzzles

14 December

During one day, a digital clock shows times from 00:00 to 23:59. How many times during the day do the four digits shown on the clock add up to 14?

Show answer

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2019

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2020