3 December

What is the volume of the smallest cube inside which a rectangular-based pyramid of volume 266 will fit?


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


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


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