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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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▼ show ▼
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Most recent collections
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
Advent calendar 2020
List of all puzzles
Tags
gerrymandering
number
dodecagons
regular shapes
trigonometry
expansions
odd numbers
clocks
logic
dates
sums
sets
means
advent
star numbers
scales
spheres
complex numbers
remainders
ave
routes
polygons
chocolate
palindromes
sport
quadrilaterals
christmas
digits
wordplay
geometric mean
shape
triangles
money
square roots
sequences
3d shapes
factorials
axes
digital clocks
cube numbers
colouring
square numbers
crossnumbers
lines
circles
rectangles
pentagons
division
cryptic clues
cards
chalkdust crossnumber
chess
shapes
parabolas
graphs
pascal's triangle
ellipses
tangents
dice
taxicab geometry
indices
numbers
decahedra
menace
books
quadratics
speed
doubling
elections
addition
calculus
irreducible numbers
rugby
matrices
folding tube maps
products
polynomials
differentiation
fractions
planes
angles
crosswords
perfect numbers
hexagons
probability
bases
cryptic crossnumbers
geometric means
albgebra
range
factors
multiples
surds
sum to infinity
tiling
triangle numbers
prime numbers
mean
median
integers
floors
averages
algebra
digital products
area
perimeter
probabilty
consecutive integers
arrows
consecutive numbers
the only crossnumber
determinants
people maths
unit fractions
squares
balancing
dominos
coordinates
volume
even numbers
percentages
geometry
multiplication
tournaments
combinatorics
integration
grids
crossnumber
time
2d shapes
cubics
proportion
partitions
functions
symmetry
games
binary
coins
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