Mind Benders Brain Teasers & Puzzle Conundrums E-Book

Vikas Khatri

• Herausgeber: V&S Publishers
• Kategorie: Lebensstil
• Sprache: Englisch
• Veröffentlichungsjahr: 2018

Seitenzahl: 112

Beschreibung

Puzzles, riddles, teasers to keep your mind sharp, challenged and refreshed

Leseprobe

Mind Benders

Brain Teasers

Puzzle Conundrums

Vikas Khatri

Published by:

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© Copyright: ISBN 978-935-05727-4-0

DISCLAIMER

While every attempt has been made to provide accurate and timely information in this book, neither the author nor the publisher assumes any responsibility for errors, unintended omissions or commissions detected therein. The author and publisher make no representation or warranty with respect to the comprehensiveness or completeness of the contents provided.

All matters included have been simplified under professional guidance for general information only without any warranty for applicability on an individual. Any mention of an organization or a website in the book by way of citation or as a source of additional information doesn't imply the endorsement of the content either by the author or the publisher. It is possible that websites cited may have changed or removed between the time of editing and publishing the book.

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It makes sense to elicit advice from well informed sources before implementing the ideas given in the book. The reader assumes full responsibility for the consequences arising out from reading this book. For proper guidance, it is advisable to read the book under the watchful eyes of parents/guardian. The purchaser of this book assumes all responsibility for the use of given materials and information. The copyright of the entire content of this book rests with the author/publisher. Any infringement/ transmission of the cover design, text or illustrations, in any form, by any means, by any entity will invite legal action and be responsible for consequences thereon.

1. Lion, Goat and Grass

There is a man who has a lion, a goat, and a bundle of grass. He has a boat too. He wants to cross a river with his lion, goat and bundle of grass.

But his boat is not very strong.

He can take only one thing at a time with him.

But the problem is that as you know if he takes the bundle of grass the lion will eat the goat, and if he takes the lion the goat will eat the grass. He wants to transport them safely to the other side of the river. HOW?

2. Farmer’s Reply

A farmer was very much fond of birds and cows. One day I went to his farm. I was very much pleased to see his birds and cows. I asked him, “How many birds and how many cows do you have in this farm?”

The farmer replied, “There are 30 heads and 100 feet.” I could not understand. I looked at him surprisingly. He told me to think and find out.

Can you?

3. The Pigeon Holes

What is the largest number of pigeonholes that can be occupied by 100 pigeons if each hole is occupied, but no two holes contain the same number of pigeons?

4. Mumbai to Goa

Mohan and Dev decided to travel from Mumbai to Goa in their new car. However, since only Dev could drive they had to cover the distance in stages. On the first day, they travelled half of the total distance. On the second day, they had to travel through very hilly parts. So they could cover only half of the remaining distance. Dev was tired from all that difficult driving. So he decided to take rest on the third day and travelled only one third of the remaining distance. On the fourth day, he was fresh and covered three fourths of the remaining distance. When they finished breakfast on the fifth day they found that they had only 24 km left to reach Goa. What was the total distance between Mumbai and Goa?

5. Fair Share

Vikas has 16 chocolates. He wants to share them equally with his three friends. How many chocolates each will have?

6.Three Friends

Anand, Bipin and Chandu are three friends. They supply vegetables, fruits and meat respectively to a big hotel. Anand visits the hotel every second day, Bipin comes with his fresh load every third day, and Chandu comes every fifth day. All three of them met on the 11th of April. When would they all meet again?

7. Arab Sheikh

An Arab Sheikh tells his two sons to race their camels to a distant city to see who will inherit his fortune. He has also announced that the one whose camel is slower will be the owner of his wealth. The brothers, after wandering aimlessly for days, ask a wise man for advice. After hearing the advice they jump on the camels and race as fast as they can to the city.

What does the wise man say?

8. Anil’s Ability

Anil is a clever boy who went to spring to get exactly 4 quarts of water. But he had only two jars – one jar holding 5 quarts and the other jar holding 3 quarts. How was Anil able to get 4 quarts of water using only these jars?

9. Read the Colour

Try to read the colour of each word as fast as you can. It might be a bit tricky.

red red purple gray green green purple purple red gray gray blue blue red purple puple red gray gray red red green purple purple yellow yellow blue gray orange blue green green gray red purple orange blue blue red blue purple yellow yellow yellow blue red green gray purple.

10. The Conscientious Driver

Aunt Nellie always followed the advice to conserve energy as she was a conscientious driver. While driving her family Ford one day, she came to a stop sign and noticed that the odometer showed 25,952 miles. Observant as she was, she recognised that this number was palindromic; it read the same backward and forward. “I bet you it’ll be a long time before a palindromic number happens again,” Aunt Nellie said to herself. Yet, two hours later when she arrived home the odometer showed a new palindrome number.

What was the new palindromic number, and how fast was she travelling in those two hours?

11. Funny Sliding Triangles

See the figure given below. It is a figure of a big triangle which includes a lot of small triangles. Each small triangle is marked with one number. In short, this is nothing but a grid of 49 numbered triangles. If triangle numbered 1 slides vertically downwards and then horizontally to the right it could land on triangle numbered 23. By exactly the

same maneuver, which triangle would land on triangle numbered 46?

Think, try and solve.

12. Think and Solve

Think about the following three problems and try to solve them:

1. A farmer, being asked what number of animal he kept on his farm, answered: “They’re all horses but two, all sheep but two, and all pigs but two.” How many animals did he have in all?

2. If a turkey weighs 10 kg and a half of its own weight, what does the turkey weigh?

3. Take 45 away from 45 and leave 45 as the remainder! If you think it can’t be done, think again. Here’s one way:

Using the same system, can you find another way?

13. Magic Pentagon

See this figure of PENTAGON. Complete this magic pentagon so that the numbers in any radial line add up to 90. Second condition is that the number in each of the five shells total 90. Third condition is that the numbers on any spiral pathway through the shells also total 90.

Try again and again and find the required numbers in the blank circles.

14. Puzzling Turns

See the puzzling map given below. This whole map shows various streets. The problem for you is – Can you get from the North of this street map to the South by turning alternately left and right every time you come to a crossing? You can start by turning first to the left or to the right. Try and see whether you can do it.

15. A Cross Number

There are no O’s (zero’s)

Across

1. Each digit is greater than the one before.

4. The same when reversed, Odd.

5. A perfect square.

Down

1. A perfect square.

2. Sum of digits is 16.

3. Each digital is greater than the one before.

16. Ages of Father and Children

Mr. Rao has four children: Suhas, Krishnan, Vilas and Anant. The oldest among four children is Vilas and the youngest is Suhas. The sum of the ages of all these four children is equal to one half of Mr. Rao’s age. The difference of the squares of the ages of Vilas and Suhas equals Mr. Rao’s age which is also equal to twice the sum of the differences of the squares of the ages of the two younger and the two older children. In 16 years, the sum of the ages of the children will exceed Mr. Rao’s age by his present age. How old are Mr. Rao and his four children?

Take pencil and paper and solve this problem. I think, it will be easy to solve with the help of Algebra. Of course, there is no compulsion like that.

17. Phone In

Atelephone wire of one mile long is being run from the side of a building and is supported by a number of poles. It was noted that if one less pole was used, the distance between the poles would have to be increased by 2 14/15 yards. How many poles are being used?

18. Count the Cubes

See the diagram below. How many cubes can you count here?

And if you found that mind-boggling you can really get yourself confused by trying to find your way through the cube maze. Go in at one arrow and come out at the other.

19. Express Sum

An express train leaves London for Edinburgh at the same time – 2 o’clock in the afternoon – as a slow train leaves Edinburgh for London. The express travels at 100 miles an hour, while the slow train at 50 miles per hour. Which train is farther from London when they meet? (You can forget about the length of the trains). Distance – London to Edinburgh is 400 miles.

Clue: Don’t spend too long over it!

20. The Magic Telephone Dial

Vina, Sonu, Vinay, Suhas, Bharat, Nila and Meena all were sitting around a table. All were in a lively mood.

They were laughing and talking, Suddenly, Nila says:

“My phone number ends in 4879. I mix up the figures now: 9478. Then I subtract the smaller number from the larger and I get,

You do the same for your phone number. I bet you end at .”

Vina, Sonu, Vinay and all began to stare at each other.

They didn’t know what to reply Nila. But Nila realised that from their faces. She said wait and she explained how she knew it. For that purpose you also turn to the solution page of this problem.

21. Total Length

Ipurchased cotton cloth of white colour. Of course it had good texture and its quality was quite good. I am very fond of dyeing clothes. A length of that cloth was dyed as follows: one-third and one-fourth were dyed black and the remaining 8 yards grey. What was the total length of the cloth?

22. Weighing

Abricklayer has 8 bricks. Seven of the bricks weigh the same amount and one is a little heavier than the others. If the man has a balance scale how can he find the heaviest brick in only 2 weightings?

23. A Mile Race

In a mile race Anant beats Vasant by 20 yards, and beats Chandu by 40 yards. By how much could Vasant beat Chandu in a mile race?

24. Form A Square

Copy this letter E, cut it into seven parts with four straight cuts, and form a square out of the parts.

25. Frog in Well

Afrog at the bottom of a well which is 10 meters deep, begins to climb out. He climbs up 3 meters every day but slips back 2 meters each night.

After how many days will he be free?

26. Top and Bottom

Find the top step. And when you have found it, start looking for the bottom step.

27. Find Proper Numbers

T