Sum People

Each of the characters in this sum box represents a different number, with the sum of all the numbers at the end of each row and column. Can you work out which number is each character represents and fill in the question mark?

Alphabetti Confetti

From the given clues, in no particular order, find the five 5-letter answers. Fit each answer into one of the rows of dots, so that every same-coloured dot contains the same letter. What's the seven letter word?

Clues: Light beer. Firearm. Queenly.

Look daggers. Substantial

Dice Maze

Each colour represents a direction (up, down, left or right) and the number of dots on each die tell you how far to go. Starting in the middle die of the maze, follow the directions correctly and you will visit every die in turn once only. Which dice is the last you visit on your trip?

Venn Diagram

Can you work out which areas of this diagram represent striped fresh water flat fish that don’t have dorsal fins, and salt water flat fish that have dorsal fins but not stripes?

Battleships

The numbers on the side and bottom of the grid indicate occupied squares or groups of consecutive occupied squares in each row or column. Can you finish the grid so that it contains three Trawlers, three Tugs and three Buoys so that the numbers tally?

Cha Cha Cha

The twenty steps that make up this dance end with the
Red Step. Can you trace back the sequence from there and
work out which was the very first step in the dance?

Chess

Can you place a queen, a bishop, a knight and a rook on this chessboard that the red squares are attacked by exactly two pieces, the green ones by 3 pieces and the yellow ones by 4 pieces?

Missing Link

Cubism

This cut-out shape can be folded to make a cube.
Which of the four cubes below is the only one it could make?

Block Lock

Which two of these block piles could be fitted neatly together to make a perfect 3 x 3 x 3 cube?

Block Party

This used to be a big cube made of 125 small blocks measuring 5 by 5 by 5. If all the blocks that are not visible from this angle are present, can you work out how many have been taken away?

Cross Check

Complete the six equations, three across and three downwards, by fitting all the digits from 1 to 9 into the empty green squares.

Lotto

This week’s big Lotto numbers are in. The five winning balls are all even numbers, none of them are green and none of them contains the number 3 or is divisible by 4. Can you find the fortunate five?

Double Maze

Make your way from A to B without passing through any blue squares - Then come back without passing through any green squares!

Cube Route

Each of the four different coloured spots on the cube represents a direction - Up, Down, Left or Right. Can you work out which colour represents which direction and make your way from a to b?

The blue arrow tells you which way is up...

MInesweeper

Each number in the grid indicates the exact number of black squares that should share borders with it. Shade the empty squares until all the numbers are surrounded by the correct number of black squares. Don’t shade any numbered squares, and there is only one solution.

Number Square

Complete the Number Square so that the numbers 1 to 25 are all in the grid, and all rows and columns add up to the totals indicated to the right and below.

Par Four

You have four shots in which to get your golf ball upwards from the tee to the hole. Choose one each from the Drive, Iron, Chip and Putt selections. Each shot goes straight from the starting to finishing square. Only one combination will get you in the hole and you may never land off the grid, in a tree or in a bunker.

Patchwork

These patchwork is in three colours - blue, purple and red. If we don’t want any same-coloured pieces to share a border, what colour will the pieces at a and b be?

Safecracker

To open the safe, all 20 of the buttons must be pressed in the correct order (which is indicated by the numbers and directions on the buttons) before the “open” button is pressed. What is the ﬁrst button pressed in your sequence?

See Saw

Each of the five different coloured balls represents a different weight - 1, 2, 3, 4 or 5 kilos. Can you work out which balls weighs what, and how many yellow balls will balance the final scale?

Shikaku

Divide the Shikaku grid into rectangles. Each rectangle must contain a single number, and that number must describe exactly how many boxes there are in the rectangle.

Traffic Lights

Complete the grid so that each row and column contains a red, orange and green light. The lights at the end of each column and row tell you the colour of the first light you will meet if you travel in that direction down the column or row.

Think Tank

What word should go into the final box?

Think Tank

What is the lateral connection behind the creation of 10-oin bowling, mime artistry and ice-cream sundaes?

Think Tank

This puzzle uses a well-known optical illusion. In each case, select the arrow head that you think goes with each flight.

What four-letter work can be made from the letters you have selected?

THINK TANK

How many moves away am I from completing this sliding block puzzle? A move consists of moving a row or column of tiles (or part of one).

Psycho Games

Psycho Games: 18

Psycho Games: 17

Psycho Games: 11

Matchstick Puzzles

Matchstick Puzzle: 001

Matchstick Puzzle: 002

Matchstick Puzzle: 003

Matchstick Puzzle: 004

Pythagorize-It!

This game, involving square patterns, is a tribute to the Greek mathematician Pythagoras and was designed to stimulate your visuospatial skills!

Baker Street Puzzles

Illustrated puzzles based on the Sherlock Holmes stories by Conan Doyle.

The Geometric Mouse

Geometric problems to solve with a piece of cheese.

Gear and belt puzzles

Puzzles involving a fitness treadmill and Fred, Gianni's hamster!

String & Knot Puzzle 004

Which ring of string is unknotted: A or B?

From Sarcone's String & Knots Puzzles series.
©Archimedes Lab. Dist. Knight Features. All rights reserved.

String & Knot Puzzle 003

In which loop A or B may your finger be gripped if we draw the strings ends while it is aside?

From Sarcone's String & Knots Puzzles series.
©Archimedes Lab. Dist. Knight Features. All rights reserved.

String & Knot Puzzle 002

Which diagram shows two rings of string LINKED together: A or B?

From Sarcone's String & Knots Puzzles series.
©Archimedes Lab. Dist. Knight Features. All rights reserved.

String & Knot Puzzle 001

Which diagram shows two rings of string LINKED together: A or B?

From Sarcone's String & Knots Puzzles series.
©Archimedes Lab. Dist. Knight Features. All rights reserved.

Junior Brain Building Puzzles

Campbell

Think Tank

Psycho Games

Matchstick Puzzles

Brainsnacks tm

Pythagorize-it!

This game, involving square patterns, is a tribute to the Greek mathematician Pythagoras and was designed to stimulate your visuospatial skills!

Baker Street Puzzles

Illustrated puzzles based on the Sherlock Holmes stories by Conan Doyle.

Geo Mouse

Geometric problems to solve with a piece of cheese.

Gear and Belt Puzzles

Puzzles involving a fitness treadmill and Fred, Gianni's hamster!

Knot Puzzles

Knots and strings were not only essential to sailors and pirates, but are still used in many industrial, occupational, recreational, and domestic settings!

Knot theory is also a branch of topology, and deals with the mathematical analysis of their structure and properties.

Junior Brain Building Puzzles

From Sarcone's Junior Brain Building Puzzles series : Visual puzzles & illusions to sharpen Kids' mind.