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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 2024
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
List of all puzzles
Tags
spheres
multiples
dates
determinants
integration
square roots
tournaments
cryptic crossnumbers
polynomials
floors
perimeter
complex numbers
trigonometry
proportion
range
advent
wordplay
digits
bases
arrows
polygons
pentagons
symmetry
games
decahedra
combinatorics
consecutive integers
perfect numbers
cards
rectangles
money
percentages
folding tube maps
routes
people maths
hexagons
axes
neighbours
dice
christmas
albgebra
palindromes
cube numbers
graphs
triangle numbers
triangles
unit fractions
prime numbers
pascal's triangle
time
crosswords
consecutive numbers
dominos
menace
sets
parabolas
square grids
colouring
ave
dodecagons
integers
the only crossnumber
shapes
expansions
tiling
averages
area
number
circles
speed
volume
geometry
functions
numbers
calculus
numbers grids
sum to infinity
even numbers
powers
elections
geometric mean
coordinates
chess
ellipses
cubics
logic
balancing
gerrymandering
multiplication
clocks
probability
scales
coins
factorials
probabilty
division
quadratics
lines
indices
irreducible numbers
digital clocks
odd numbers
chalkdust crossnumber
remainders
addition
differentiation
geometric means
quadrilaterals
doubling
matrices
tangents
3d shapes
books
factors
square numbers
2d shapes
angles
rugby
sequences
star numbers
crossnumbers
chocolate
fractions
algebra
squares
mean
grids
medians
planes
regular shapes
sums
surds
partitions
digital products
products
cryptic clues
means
median
sport
binary
taxicab geometry
shape
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