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