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Advent calendar 2016
22 December
All 2016 advent puzzles
~
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Today's number is a palindrome. Today's number is also the number of palindromes between 111 and 11111 (including 111 and 11111).
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191
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the only crossnumber
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Most recent collections
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
Advent calendar 2020
List of all puzzles
Tags
christmas
the only crossnumber
triangles
even numbers
tiling
surds
consecutive integers
time
parabolas
dodecagons
cube numbers
quadratics
dates
indices
expansions
sequences
crossnumber
geometry
ave
balancing
polynomials
area
functions
pascal's triangle
binary
spheres
complex numbers
books
triangle numbers
unit fractions
circles
averages
coins
lines
chocolate
chalkdust crossnumber
regular shapes
crosswords
planes
partitions
gerrymandering
multiples
doubling
digital products
probability
shapes
floors
menace
proportion
cryptic clues
quadrilaterals
division
palindromes
square numbers
clocks
polygons
pentagons
sum to infinity
taxicab geometry
routes
squares
determinants
numbers
perfect numbers
money
sport
ellipses
probabilty
multiplication
integers
factors
dice
combinatorics
geometric means
shape
rugby
differentiation
elections
hexagons
dominos
symmetry
grids
irreducible numbers
chess
3d shapes
folding tube maps
matrices
number
logic
graphs
median
2d shapes
tangents
colouring
wordplay
algebra
percentages
products
cubics
cards
geometric mean
square roots
mean
sets
rectangles
bases
integration
digits
decahedra
star numbers
people maths
volume
coordinates
axes
addition
range
angles
advent
prime numbers
perimeter
sums
consecutive numbers
tournaments
fractions
factorials
means
games
albgebra
odd numbers
scales
trigonometry
calculus
speed
cryptic crossnumbers
crossnumbers
digital clocks
arrows
remainders
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