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