mscroggs.co.uk
mscroggs.co.uk

subscribe

Puzzles

The sixth cent

You toss 6 fair coins, and I toss 5 fair coins. What is the probability that you get more heads than I do?

Show answer & extension

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2023

Advent calendar 2022

Advent calendar 2021

Advent calendar 2020


List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2024