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