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