Containing hundreds of logical puzzles, mind benders, mathematical teasers, ... Discover Your IQ Potential is the perfect way to challenge your IQ.
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Ken Russell & Philip Carter
Trang 5Arcturus Publishing Limited 1-7 Shand Street London SE1 2ES
This edition published 2001
All rights reserved No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without permission in accordance with the provisions of the Copyright Act 1956 (as amended) Any person
or persons who do any unauthorised act in relation to this Publication may be liable to criminal prosecution
and civil claims for damages Cover by Communiqué Design and layout by Gary Everest
Edited by Anya Martin
Printed and bound by Hong Kong Graphics and Printing Limited, Hong Kong ISBN 1-84193-065-2
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Welcome to Discover Your IQ Potential, a book packed with every sort of puz-
zle — word, number, and visual — designed to enhance your aptitude and stimu- late your mind
The book is divided into 20 sections, each containing 25 puzzles No specialist
knowledge is required to work them out They can all be solved using standard mathematical or alphabetical calculations Neither do the questions increase in
difficulty as the book progresses Hard and easy questions are randomly
interspersed So if you can’t get one, don’t despair! Just move on to the next question
All the answers are listed at the back of the book, but we suggest that you don’t look at them until you absolutely have to!
We have also provided some tables at the beginning of the book, which you may
find a useful aid when tackling the puzzles
Discover Your IQ Potential is a stimulating, challenging, but above all, fun way of sharpening your wits and training your mind to think logicall
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Frank has half as many again as Sally who has half
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What day comes two days after the day immediately
before the day three days ] 7
after the day immediately e
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Each line and symbol which appears in the four outer circles, below, is transferred to the centre circle according to these rules: Ifa line or symbol occurs in the outer circles: once: itis transferred twice: it is possibly transferred 3 times: itis transferred 4 times: itis not transferred Which of the circles A, B, C, D or E,
should appear at the centre of the diagram, below?
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On his return he takes 60 mins What is his
average speed for the total trip?
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Fill the grid with the letters ABCDE so that the same
letter does not appear in the same horizontal, vertical or diagonal linẹ A Vv Y I ox”
You have accidentally left the plug out of the bath and are attempting to fill the bath with
both taps full on The hot tap takes 5 minutes to fill the bath
and the cold tap 4 minutes, and
the water empties through the plug-hole in 20 minutes In how many minutes will the
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circle according to these rules: If a line or symbol occurs in the outer circles: once: it is transferred twice: it is possibly transferred 3 times: it is transferred 4 times: it is not transferred Which of the circles A, B, C, D or E,
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Starting at midnight, snow fell 11/2 " every 6 hours If there was already
2 1/4 " of snow at midnight, what was the
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Place a word in the brackets which means the same as the two words outside the brackets
TAUNT( ) EAT GREEDILY
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Each symbol € hos Caluẹ Which symbol Simplify
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In a game of 6 players lasting for 40 minutes, there are 4 reserves They
substitute each player, so that all players, including reserves, are on the pitch
for the same length of timẹ How long is each
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Each line and symbol which appears in the four outer circles, below, is transferred to the centre
circle according to these rules: If a line or symbol occurs in the outer circles: once: it is transferred twice: it is possibly transferred 3 times: it is transferred 4 times: it is not transferred Which of the circles A, B, C, D or E,
should appear at the centre of the diagram, below?
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Each of the nine squares in the grid marked Al to C3, should incorporate all the lines and symbols which are shown in the squares of the same letter and number immediately above and to the left For example, B2 should
incorporate all the lines and symbols that are in 2 and B One of the squares is incorrect Which one is it? A B Cc dole Bl Cc Waly B2 C2 ca |8 B3 C3 @|Ø |>|b Ộ `
The average of two numbers is 41 1/2 The average of three numbers is 72
What is the third number? The price of a pack of 6 pairs is $19.50
By what percentage are the socks cheaper
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The price of one pair of socks is $3.50
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What day immediately follows the day three days before the day immediately before the
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What number should replace the question marks? A car travels 40 miles
@® @ in the same time as
Ota OD another car travelling
/ 20 mph faster covers
@ 6 @ @ 6 60 miles How long
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Which is the ođ one out?
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How many times must the large cog revolve before all thick number should
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replace the question mark?
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usually swims faster than rinat comes neả
‘ack sometimes swims ^ l® BA
aster than Tanya, but
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Sallỵ Who is the slowest E E
swimmer? Ạ ^ } OOOOâOCâOOOOOOCCOOO@6666
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circle according to these rules: If a line or symbol occurs in the outer circles: once: it is transferred twice: it is possibly transferred 3 times: it is transferred 4 times: it is not transferred Which of the circles A, B, C, D or E,
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DENIGRATED, REPULSION, FARANDOLE,
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Josie has £600 to
EV spend She spends 3/5
of the £600 on clothes,
What comes next? 0.45 of the remainder
at a beauty salon and
writes out a cheque for
A B £150 for a new watch
a a ul What is her financial
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What number should replace the question mark? ACFHKM?
What letter comes next?
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What weight should be placed at the ? in order to balance the scales?
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Divide 600 by 1/4 and ađ 15 What is the answer?
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The cost of hiring a private rail carriage is shared equally by all the passengers who all paid an exact number of pounds which was less
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Each line and symbol which appears in the four outer circles, below, is transferred to the centre
circle according to these rules: If a line or symbol occurs in the outer circles: once: it is transferred twice: it is
possibly transferred 3 times: it is transferred 4 times: it is not transferred Which of the circles A, B, C, D or E,
should appear at the centre of the diagram, below?
What number should replace the ?
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Each of the nine squares in the grid marked A1 to C3, should incorporate all the lines and symbols which are shown in the squares of the same letter and number immediately above and to the left For example, B2 should
incorporate all the lines and symbols that are in 2 and B
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A hundred eggs are in a crate, if you draw out 2, and there are 6 bad eggs in the crate, what are your chances of drawing out 2 bad
eggs?
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At a school outing
81% of the boys had lost a shoe 82% of the boys had lost a sock
77% of the boys had lost a handkerchief
and
68% of the boys had lost a hat
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Multiply by 7 the number of ođ numbers which are immediately followed by an even number in
the list abovẹ What is the answer? we What should replace the question marks? HF 86 SU oe
Which is the ođ one out?
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both dots then meet the same conditions as in the heptagon abovẻ BOS Oe wo What number should replace the question mark?
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Each of the nine squares in the grid marked Al to C3, should incorporate all the lines and symbols which are shown in the squares of the same letter and number immediately above and to the left For example, B2 should
incorporate all the lines and symbols that are in 2 and B
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What number should replace the ?
What number should replace the ?
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There are two brothers and two sisters In 10 years they will total 100 in their ages How much will
the total be in 7 years? OOOOâOCâOOOOOCCC@6666666
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Each line and symbol which appears in the four outer circles, below, is transferred to the centre
circle according to these rules: If a line or symbol occurs in the outer circles: once: it is transferred twice: it is possibly transferred 3 times: it is transferred 4 times: it is not transferred Which of the circles A, B, C, D or E,