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Advent calendar 2016
15 December
All 2016 advent puzzles
~
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A book has 386 pages. What do the page numbers on the two middle pages add up to?
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387
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numbers
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Most recent collections
Advent calendar 2025
Advent calendar 2024
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List of all puzzles
Tags
area
tiling
squares
sum to infinity
cryptic clues
xor
fractions
proportion
games
averages
elections
probability
gerrymandering
means
pentagons
grids
number
digits
matrices
scales
dice
factorials
mean
indices
time
triangle numbers
perimeter
division
surds
polygons
multiplaction squares
partitions
factors
polynomials
routes
even numbers
christmas
decahedra
addition
cube numbers
rectangles
unit fractions
multiples
triangles
planes
star numbers
albgebra
geometric mean
square roots
chess
integers
lines
prime factors
range
crossnumbers
dates
3d shapes
bases
tangents
digital clocks
determinants
sums
odd numbers
perfect numbers
colouring
ave
regular shapes
chalkdust crossnumber
trigonometry
palindromes
square numbers
doubling
logic
books
calculus
volume
wordplay
people maths
products
quadratics
symmetry
neighbours
digital products
dominos
angles
consecutive integers
combinatorics
speed
remainders
dodecagons
percentages
menace
tournaments
chocolate
cryptic crossnumbers
multiplication
the only crossnumber
lists
cubics
money
algebra
pascal's triangle
hexagons
median
folding tube maps
coins
prime numbers
axes
medians
arrows
coordinates
irreducible numbers
shape
consecutive numbers
numbers
cards
spheres
2d shapes
expansions
advent
integration
shapes
rugby
floors
circles
probabilty
taxicab geometry
parabolas
ellipses
sets
geometric means
balancing
quadrilaterals
square grids
crosswords
functions
complex numbers
sequences
differentiation
geometry
sport
binary
powers
clocks
graphs
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