Who Was The Thief?

There was a burglary in the Silver City jewelry store last Sunday.

Three suspects: Robert, Scott, and Tommy were caught and questioned.

Each person said, “One of the other two stole it. I did not do it.”

Later on the police found out that Tommy was lying and there was only one thief.

Can you guess who was the thief?

He must be the thief!

He Must Be The Thief!

Who were suspects?

If the statements made by Tommy are false then it suggests that none of other stole it. That means Tommy himself stole it. Also his other statement where is claiming that he didn't do that is also a lie.

In short, Tommy must be the thief.

 

Truth or Lie Puzzle

Out of three people (Lavesh, Mayank and Manoj), one of them is a king, one a bureaucrat, and one a thief.
The king always tells the truth, the bureaucrat always lies, and the thief can either lie or tell the truth.
Lavesh says: 'Manoj is a bureaucrat.'
 
Mayank says: 'Lavesh is a king.'
 
Manoj says: 'I am the thief.'
Who is the king, who the bureaucrat, and who the thief? 

Find the TRUTH here! 
 

King, Bureaucrat and Thief

What was the story? 

Let's take a look at the statements made by 3.

Lavesh says: 'Manoj is a bureaucrat.'
Mayank says: 'Lavesh is a king.'
Manoj says: 'I am the thief.'

Now let's test truth in each statement.

If we assume Mayank is king and telling the truth than according to him Lavesh is also king. But that's not the possible case.

Now if we assume Manoj is king then his statement must be true where he is saying that he is thief. So how he can be a king & thief at the same time.

Hence, the Lavesh must be a king. Mayank is here telling the truth and hence must not be bureaucrat and hence he is thief. So Manoj is bureaucrat lying in his statement.
 

 

Count Number of F's

Out of how many F's does the following sentence consist?
FINISHED FILES ARE THE RESULTS OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE
EXPERIENCE OF YEARS.

Your Count May Be WRONG!

In Between Wrong Count Of F's

Take a look at sentence once again!

Did you count only 3? Really? Here is that sentence written once again.

FINISHED FILES ARE THE RESULTS OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE
EXPERIENCE OF YEARS.

So didn't you count F of word 'OF'? Now how many F's you are finding? 

And that's right! There are 6 F's in the sentence. 

 

Another Game Of Death

Jigsaw forced Mahrez and Vardy to play the game of death.

Jigsaw placed 11 marbles at the table and asked Mahrez and Vardy to pick marble(s) one by one with the following rules:

1. You need to pick at least one marble.
2. You can't pick more than five marbles.

The one that picks the last marble will die.

Mahrez to start the game.

How many marbles must Mahrez pick in order to make sure that he came out from the game alive?

This should be Mahrez's Master Plan! 

Surviving In Another Game Of Death

What was the game?

Mahrez should start with the picking 4 marbles.

Now if Varde picks one Mahrez can pick 5 leaving 1 behind for Varde who in turn has to pick it in the end.

Similarly, if Varde picks 2, Mahrez need to pick 4, again leaving 1 behind.

For Varde's pick of 3,4,5; Mahrez should pick 3,2,1 respectively which will always leave behind 1 marble.

This way, Mahrez can easily survive!

Who Stole The Money?

A man placed a $100 dollar bill on his desk and left for work. When he returned back the money was gone. He has three suspects: the cook, the maid and the electrician.

The cook said he put the bill under a book on his desk to keep it safe. The man checked and it is no longer there.

The maid said she moved the bill to the inside of the book between page 1 and 2 while she was cleaning. Again, the man checked the book and there was nothing between page 1 and 2.

The electrician said he saw the bill sticking out of the book and he moved it between page 2 and 3 to keep it safe.

Who stole the money?

Know who is the thief? 

The Electrician Stole The Money

Who were other suspects?

The electrician must be lying. Since the man checked between page 1 and 2 the next pair of page must be 3 and 4 not 2 and 3. The page numbers 2 and 3 must be the part of single page. 

So how can electrician move it between page 2 and 3? 

The Dog Of The Commander

A long and straight row of soldiers is marching with constant speed. The dog of the commander runs along the row from the end till the beginning, from the beginning till the end, from the end till the beginning etc. This takes always 2 minutes, 1 minute, 2 minutes, etc. 

At some point the soldiers have to pass a very small bridge. However, the commander does not trust the strength bridge completely. He wonders how much time it will take them to pass the bridge when they stay marching with the same speed. 

How much time is that?  

You can skip to the answer! 

Passing A Very Small Bridge

What is the question?

For march of soldiers to pass any point, there must be first man crossing that point first and then later the last man should cross the same point. 

Now the dog runs from the first to last man in 1 minute, then runs back to first man in 2 minutes and again back to last man in 1 minutes. That means the dog must be at the same point where he started journey from first man. In other words, the dog has run for 2 minutes in both the directions. Hence, he must be at the same point after 4 minutes.

Interestingly, the dog was at first man when started & after 4 minutes ended at the last man of the march. Since dog is at the same point after 4 minutes, the entire march of soldiers is crossed that point in 4 minutes as first and last man have crossed that point.

The same when applied to a very small bridge which can be assumed as a point, we can say that it requires 4 minutes for soldiers to cross it.
 

Who Did It?

Three of these statements are false, so who did it?

    Mr Red: “Mr Blue did it.”

    Mr Blue: “Mr Red did it.”

    Mr Green: “Mr Blue’s telling the truth.”

    Mr Yellow: “Mr Green’s not lying.”

Find who did it!

Mr. Blue Did it!

What were the statements by suspects?

If Mr. Yellow is telling the truth then Mr. Green and hence Mr. Blue all are telling the truth. This is against the given data.

This hold true if we assume that Mr. Green is telling the truth or Mr. Blue telling the truth. In all cases, 3 statements would be true.

Hence, only statement of Mr.Red is true and that's why Mr. Blue did it!

 

The Mongolian Postal Service

The Mongolian Postal Service has a strict rule stating that items sent through the post must not be more than 1 meter long. Longer items must be sent by private carriers, and they are notorious for their expense, inefficiency, and high rate of loss of goods.

Boris was desperate to send his valuable and ancient flute safely through the post. Unfortunately, it was 1.4 meters long and could not be disassembled as it was one long hollow piece of ebony. Eventually he hit on a way to send it through the Mongolian Postal Service. 

What did Boris do?

That's what needed for safe delivery! 

Deliverying The Valuable Safely!

What was the problem in delivery?

Boris keeps the flute diagonally in a square shaped suitcase whose side measuring 1m.

Since side is 1 m the diagonal of such suitcase must be square root of 2 i.e. 1.414 m. So the 1 m long flute can easily fit diagonally in such suitcase.

 

Earnings Of People

Twenty men, women and children earn twenty coins between them. Each man earns 3 coins, each woman 1.5 coins and each child 0.5 coin.

How many men, women and children are there?

Find number of each of them here!

Number Of Earning People

What was the question? 

Let's suppose there are m men, w women and c children.

As per given data,

m + w + c = 20   ......(1)

3m + 1.5w + 0.5c = 20   .....(2)

Multiply equation (1) by 3 and then subtracting from (2), we get,

5m + 2w = 20.

For m and w to be whole numbers, m must be 2 and w must be 5 satisfying above equation.

Hence, from (1),

c = 20 - 2 - 5 = 13.

 
To conclude, there are 2 men, 5 women and 13 children.

Draining Reservoir

A large fresh water reservoir has two types of drainage system: small pipes and large pipes.

6 large pipes, on their own, can drain the reservoir in 12 hours.

3 large pipes and 9 small pipes, at the same time, can drain the reservoir in 8 hours.

How long will 5 small pipes, on their own, take to drain the reservoir?

Find here the exact time required! 

Time To Drain The Reservoir

Here is the question! 

Let T be the capacity of the tank. Let L be the large pipe and S be the small pipe.

T/6L = 12

L = T/72

T/(3L + 9S) = 8

Putting L = T/72,

S = T/108

Hence T/5S = 108/5 gives S = 21.6 hours.

To conclude, small pipes require 21.6 hours i.e. 21 hours and 36 minutes to drain the reservoir.