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Advent calendar 2017
18 December
All 2017 advent puzzles
~
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Today's number is the maximum number of pieces that a (circular) pancake can be cut into with 17 straight cuts.
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154
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Archive
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Most recent collections
Advent calendar 2025
Advent calendar 2024
Advent calendar 2023
Advent calendar 2022
List of all puzzles
Tags
factors
fractions
sum to infinity
coins
geometry
books
triangles
squares
sequences
volume
ellipses
dominos
xor
crossnumbers
digital clocks
binary
polygons
square numbers
the only crossnumber
lists
grids
prime factors
multiples
palindromes
neighbours
geometric mean
dates
lines
wordplay
christmas
sport
indices
odd numbers
chalkdust crossnumber
star numbers
shapes
spheres
unit fractions
ave
polynomials
factorials
trigonometry
consecutive numbers
determinants
combinatorics
dice
planes
money
scales
perimeter
routes
graphs
coordinates
doubling
sets
albgebra
pentagons
2d shapes
mean
integration
cubics
advent
symmetry
geometric means
regular shapes
hexagons
cards
digital products
cryptic clues
perfect numbers
area
surds
chess
floors
probability
rectangles
probabilty
products
cryptic crossnumbers
gerrymandering
clocks
digits
colouring
percentages
games
folding tube maps
addition
axes
complex numbers
crosswords
multiplication
expansions
medians
integers
rugby
tangents
means
powers
speed
bases
angles
consecutive integers
matrices
even numbers
quadrilaterals
tiling
dodecagons
square roots
quadratics
time
proportion
sums
parabolas
algebra
shape
numbers
tournaments
functions
division
elections
arrows
averages
partitions
triangle numbers
irreducible numbers
people maths
cube numbers
circles
range
square grids
calculus
taxicab geometry
multiplaction squares
decahedra
median
balancing
number
3d shapes
chocolate
pascal's triangle
prime numbers
differentiation
menace
remainders
logic
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