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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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Archive
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Most recent collections
Advent calendar 2024
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
List of all puzzles
Tags
unit fractions
shapes
tiling
combinatorics
geometry
palindromes
quadratics
chess
averages
area
integration
crossnumbers
cube numbers
bases
sets
factors
factorials
perfect numbers
dominos
consecutive numbers
tangents
determinants
geometric means
polygons
christmas
lines
folding tube maps
dodecagons
remainders
number
binary
square roots
digits
regular shapes
mean
chocolate
cryptic clues
triangle numbers
spheres
digital products
odd numbers
range
even numbers
graphs
geometric mean
coordinates
complex numbers
3d shapes
taxicab geometry
numbers
games
powers
means
circles
sums
expansions
dice
ellipses
doubling
differentiation
menace
fractions
grids
numbers grids
proportion
sequences
chalkdust crossnumber
speed
albgebra
clocks
prime numbers
partitions
probabilty
digital clocks
crosswords
cubics
neighbours
quadrilaterals
symmetry
probability
scales
logic
pentagons
rugby
hexagons
the only crossnumber
parabolas
products
wordplay
dates
trigonometry
floors
coins
elections
cryptic crossnumbers
gerrymandering
squares
rectangles
balancing
addition
sum to infinity
time
square numbers
axes
consecutive integers
square grids
cards
routes
percentages
money
volume
triangles
functions
irreducible numbers
indices
division
angles
calculus
ave
surds
polynomials
integers
median
tournaments
algebra
multiplication
medians
perimeter
matrices
books
arrows
decahedra
2d shapes
colouring
people maths
pascal's triangle
star numbers
advent
multiples
sport
shape
planes
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