IQ mindbenders by joe cameron

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Prepare yourself for the ultimate test of your brain power! We’re devised over 500 IQ puzzles to stretch your logical and lateral thinking abilities to the limit.

This book has been meticulously compiled from some of the most devious puzzles you’ve seen Some will require keen mathematical skill, others an ability to recognise abstract patterns, but all our puzzles are supremely logical and can

be solved with the right approach.

If you have a sharp mind, some of the answers to these puzzles will jump straight out

of the page at you However, others will require a bit more thought Try not to rush for

an answer straight away – have faith in your abilities and all will become clear – and don’t feel tempted to have a peek at the answer page too soon If you feel completely stumped by one particular puzzle, then move on and come back to it later – coming

up with the solution to a later puzzle just might give you the inspiration you need!

But the idea of this book is not about right and wrong answers, it’s about exercising your mind and flexing your mental muscles With the right approach, you too can discover your IQ potential.

The large variety of puzzles here are designed to test your powers of lateral thinking and problem solving to the max! You’ll have to be able to recognize patterns and sequences, spot similarities and differences and even pick your way through our convoluted mindbenders The solutions to all the puzzles in this book are staring you right in the face – you just have to be looking at them in the right way!

So sit back, relax your body and let your brain take the strain – it’s all a matter of logic.

PUZZLE 2

What time should the missing watch read?

1

9

Which circle replaces the question mark?

PUZZLE 4

Which number replaces the question mark and completes the puzzle?

2

5 6

4 1

9 7

S T

Which letter replaces the question mark and

completes the puzzle?

Which number replaces the question mark and completes the puzzle?

25 36 49

5

11 7

13 17

?

W T K

? Y

P

Which letter is missing from the lower

Which number is missing from the

bottom triangle?

Which number replaces the question mark and

completes the puzzle?

8 2

1 2

G D

Q

? Y

R X

N

T J L B I

C M W

A

S T

Which number replaces the question mark and completes the puzzle?

Where should the minute hand be put

on the bottom clock?

What is missing from the last hexagon? Which letter completes the puzzle?

PUZZLE

19

PUZZLE 20

Which number replaces the question mark and

completes the puzzle?

Which number replaces the question mark and

completes the puzzle?

2 6

3

9

5 6 6

1

? 4

?

S T

Which number replaces the question mark and

completes the puzzle?

Which letter replaces the question mark and

completes the puzzle?

11 13 15 17

10 13 16 19

16 21 26

3 1

9

? 17 21

Z S M

G I

?

D H E

Which letter is missing from the lower right hand circle?

PUZZLE 26

Which number replaces the question mark and completes the puzzle?

3 7

5

6 8

7

10 2

6

2 4

S T

Which number is the odd one out in each oval? Which letter replaces the question mark and

completes the puzzle?

72

77

86 49

G

C L

J

A H

What is missing from the last segment? Which letter completes the puzzle?

PUZZLE

3

PUZZLE 4

Which tool will make the last scale

7

4 6

4

5

1 Z

O

G

O F

H K

?

S T

2

19

PUZZLE 6

Which letter replaces the question mark and completes the puzzle?

6

2 1

4 6 3

1

5 2

9 8 7

7

7 1

8 2 4

4

1 4

6 3

1

6 5

2 9 1

3

?

What is missing from the bottom right hand circle? Which letter completes the puzzle?

PUZZLE

9

PUZZLE 10

Which number replaces the question mark and

completes the puzzle?

Which number replaces the question mark and

completes the puzzle?

10

6 16

? 22

S T

2

21

PUZZLE 13

Which letter completes the puzzle?

PUZZLE 12

PUZZLE 14

Which number replaces the question mark and

completes the puzzle?

Which number replaces the question mark and completes the puzzle?

9 2

What is missing from the last circle? Which number completes the puzzle?

PUZZLE 17

Which letter replaces the question mark and completes the puzzle?

5 7

? 1

4 16

S T

2

23

the last oval?

PUZZLE 20

Which letter replaces the question mark and

completes the puzzle?

7 2

Which of the lower circles replaces the question mark?

Which letter completes the puzzle?

PUZZLE 23

PUZZLE 22

Which number replaces the question mark and completes the puzzle?

H

?

L

J N

? 5

6 7

4 3

S T

2

25

PUZZLE 25

Which letter completes the puzzle?

PUZZLE 26

PUZZLE 27

Which number replaces the question mark and completes the puzzle?

Which number replaces the question mark and completes the puzzle?

10 2

3 7

4

4

9

8 2

11

10

5 5

2 7

Which segment completes the puzzle?

PUZZLE 29

Which letter replaces the question mark and completes the puzzle?

Which letter follows the sequence to complete the puzzle?

C V

U N

M F

?

S T

Which number replaces the question mark and

completes the sequence?

Which letter replaces the question mark and

completes the sequence?

3 10

6 1

2 7

4 1

14 9 4

1

12 3 5

?

5

1 3

3 7 9 2

3

? 2

3 1

4

4 1

3 9 4

8 4 6 6

16 5

Which letter replaces the question mark and completes the sequence?

PUZZLE 6

Which number replaces the question mark and completes the sequence?

S T

Which number replaces the question mark and

completes the puzzle?

Which letter replaces the question mark and

completes the puzzle?

F H

B N P

B

G

K

L B G

PUZZLE 10

Which letter replaces the question mark and completes the puzzle?

Which number replaces the question mark and

completes the puzzle?

Which letter replaces the question mark and

completes the puzzle?

PUZZLE 13

Which number replaces the question mark and completes the puzzle?

S T

3

31

and completes the puzzle? and completes the puzzle?

PUZZLE 16

Which playing card replaces the question mark and completes the puzzle?

Which letter replaces the question mark and completes the sequence?

Which letter replaces the question mark and completes the puzzle?

PUZZLE

19

PUZZLE 20

Where should the missing hour

hand point?

Which letter replaces the question mark and

completes the puzzle?

S T

3

33

Mproperties in rather exclusive

areas of the town, and haverecently had them valued Harold lives

in Meadow Rise, but his property isnot worth £75,000 The property inHoneysuckle Row worked out as thecheapest, despite it being a lovelyroad Bette lives in a terrace house,although there are no terraced housesalong Shangri-La Way Mavis’s

property is not a bungalow Can youdeduce from these clues which personlives where, in which property, andhow much the property was valued

PUZZLE

22

PUZZLE 23

Which letter replaces the question mark and

completes the puzzle?

Which number replaces the question mark and

completes the puzzle?

C

U L

T K

?

? 9

D P G

M F K

NRG EJI

Property Road Value Owner

Which picture cube does this shape make?

PUZZLE

25

PUZZLE 26

Which letter replaces the question mark and

completes the puzzle?

Joe and John are playing marbles If Joe loses one marble to John, they will both have the same number of marbles, but if John loses one marble to Joe, Joe will have twice the number of marbles as John How many marbles do the two boys currently have?

S T

3

35

18

3 12 6 15

12

2 7 5 9

12

11 4 8 15

?

8 3 4 11

9 1 8

7 2 2 5

Which number replaces the question mark and completes the puzzle?

PUZZLE 29

Which number replaces the question mark and completes the puzzle?

PUZZLE 30

Which domino replaces the question mark to complete the puzzle?

Which number is missing? Which letter completes the puzzle?

PUZZLE

3

PUZZLE 4

Which symbol replaces the question mark and completes the puzzle?

Which number replaces the question mark and completes the puzzle?

V

K F

5 2

2

4 11

7 7 12 5

9

3 6

S T

4

37

PUZZLE 6

Which letter replaces the question mark and completes the puzzle?

4 8

7 5 6 11

3 7

5 2 5 9

5 1

11 3 9 13

2 10

6 6

14

3 11

9

? 7 17 0

What is missing from the bottom left circle? Which letter completes the puzzle?

PUZZLE

9

PUZZLE 10

Which number replaces the question mark and completes the puzzle?

Which number replaces the question mark and completes the puzzle?

7 4

? 5

S T

4

39

PUZZLE 13

Which letter completes the puzzle?

PUZZLE 12

PUZZLE 14

Which number replaces the question mark and

completes the puzzle?

Which number replaces the question mark and completes the puzzle?

4 1

What is missing from the last circle? Which number completes the puzzle?

PUZZLE 17

Which of the bottom letters replace the question mark and completes the puzzle?

6 6

2 12 3 1

5 12

4

?

2 10

S T

4

41

PUZZLE 20

Which letter replaces the question mark and

completes the puzzle?

5 9

What is missing from the central circle?

Which letter completes the puzzle?

PUZZLE 23

PUZZLE 22

Which single digit number replaces the question mark?

B P F

I

U U

10 4

2 3

S T

4

43

PUZZLE 25

Which letter completes the puzzle?

PUZZLE 26

PUZZLE 27

Which number replaces the question mark and completes the puzzle?

Which letter replaces the question mark and completes the puzzle?

2 6

7 3

5

8

6

1 7

3

2

12 7

Which shape completes the puzzle?

PUZZLE 29

Which number replaces the question mark and completes the puzzle?

Which letter replaces the question mark and completes the puzzle?

4 1

2 2

7 2

?

S T

5

45

PUZZLE 2

Which time from the choices given follows the sequence?

Which letter replaces the question mark from the choices given below?

PUZZLE 4

Which number replaces the question mark and completes the puzzle?

9

? 4

4 1

6 3

S T

Which number replaces the question mark and completes the puzzle?

Which number replaces the question mark and completes the puzzle?

72 69 64 57 48

?

9 5 13 4

G J

?

C D K

R A

?

What is missing from the last hexagon? Which letter completes the puzzle?

PUZZLE

11

PUZZLE 12

Which number replaces the question mark and

completes the puzzle?

Which number replaces the question mark and

completes the puzzle?

23 38 45 64 67

?

5 4

1 4

0 4

M C

K

O

? L

J

F

G I E A H

J N Q

S

S T

Which number replaces the question mark and

completes the puzzle?

Where should the hour hand be pointing on

the bottom clock?

What is missing from the last shape? Which letter completes the puzzle?

PUZZLE

19

PUZZLE 20

Which letter replaces the question mark and completes the puzzle?

Which number replaces the question mark

and completes the chain?

D J

Q

M

P Y S

U

? N

?

A

H F E

?

S T

Which number replaces the question mark and

completes the puzzle?

Which number replaces the question mark and

completes the puzzle?

9 11 2 14

1 7 2 2

4 9 2 6

5

? 0 8

5 7 5

3 2

?

8 4 6

What is missing from the last circle?

PUZZLE 26

Which number replaces the question mark and completes the puzzle?

4 3

1

12 10

8

2 2

5

6 5

S T

Which number is the odd one out in each oval? Which number replaces the question mark and

completes the puzzle?

16

9 49

4

12 5

7

6 7

Which letter replaces the question mark and

completes the puzzle?

Which letter replaces the question mark and

completes the puzzle?

PUZZLE

3

PUZZLE 4

Which number is missing? Which letter replaces the question mark

and completes the puzzle?

D A

E I

X I

M C

Q S N

U

Y

? H

3

4

5 2

4 5 3 4

6

3 15 4

11 3 11 8 9 5

S T

6

55

PUZZLE 6

Which number replaces the question mark and completes the puzzle?

Which letter replaces the question mark in the last star?

PUZZLE

8

PUZZLE 9

Which number completes the puzzle? Which number replaces the question mark and

completes the puzzle?

E W

O G U

M

L C

T K D

U

T J

Z P

? D

PUZZLE 10

Which letter replaces the question mark and completes the puzzle?

S T

6

57

PUZZLE 13

Which number do you need to add to complete the puzzle?

Which letter is missing? Which letter replaces the question mark and

completes the puzzle?

PUZZLE 16

Which playing card replaces the question mark and completes the puzzle?

S T

What time should the bottom clock show? Which letter replaces the question mark and

completes the puzzle?

Newtown has always had a thrivingamateur dramatics scene This

year, the Piecrust Players wereputting on a production of Macbeth.Othello, which was not performed by theCoventry Amateur Dramatics, had thecheapest tickets Julius Caesarwas theproduction put on in March and, although

it had the best set yet seen in Newtown,was not the most expensive to see TheReal Shakespeare Company’s productionwas put on later than the Piecrust Players’one From this information, can you workout which group put on which play, thecost of the tickets and the month in whichthe plays could be seen?

PUZZLE 21

Which number is missing from this puzzle? Which letter replaces the question mark

and completes the sequence?

9

6 11

14 16

?

B X

I W L

L O S

DKS O?J

Play Opening

month

Ticket price Theatre

group

Julius Caesar Othello Macbeth

£3

£6

£10 March June October

PUZZLE

23 PUZZLE

22

S T

Which number replaces the question mark and

completes the puzzle?

A

B

C

D