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


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


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