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