**Lavesh**,

**Bolt**, and

**Lewis**race each other in a

**100 meters**race. All of them run at a constant speed throughout the race.

**Lavesh**beats

**Bolt**by

**20**meters.

**Bolt**beats

**Lewis**by

**20**meters.

How many meters does

**Lavesh**beat

**Lewis**by ?

**Know here the answer!**

How many meters does

Let

Now

At

Another method.

Let

Similarly,

B/W = 100/80 = 5/4

Putting (2) into (1),

L = (5/4) x (5/4) W

L/W = 25/16

For given time t, when

100 m/ Distance by W = 25 / 16

So when Lavesh finished cross line at

You are the** ruler** of a medieval empire and you are about to have a celebration tomorrow. The celebration is the most important party you have ever hosted. You've got **1000 bottles of wine** you were planning to open for the celebration, but you find out that one of them is **poisoned.**

The poison exhibits** no symptoms** until death. Death occurs within ten to twenty hours after consuming even the minutest amount of poison.

You have over a**thousand** **slaves** at your disposal and just under** 24 hours** to determine which single bottle is poisoned.

You have a handful of prisoners about to be executed, and it would mar your celebration to have anyone else killed.

What is the**smallest number **of prisoners you must have to drink from the bottles to be absolutely sure to find the poisoned bottle within 24 hours?

**Here is the test designed for it!**

The poison exhibits

You have over a

You have a handful of prisoners about to be executed, and it would mar your celebration to have anyone else killed.

What is the

Here

Wherever 1 is written for the particular bottle number, that bottle should be given to particular prisoner. Otherwise should not.

So for the specific bottle with unique number a specific combination of prisoners (they are bits here) would be formed.

For example, if bottle labeled as 11 has a poison then prisoner no. 4,2,1 would die. In other words, if prisoner 4 & 2 die then the bottle no. 10 had poison.

For 16th bottle we would have needed 1 more prisoner.

In similar way, to test 1000 bottles, we need

Poisonous Bottle |

In case there were 1025 bottle, we would have needed 11 prisoners.

In a guess game , five friends had to guess the exact numbers of apples in a covered basket.Friends guessed as** 22 , 24, 29 , 33 , 38,** but none of guess was right.The guesses were off by **1, 8, 6, 3,** and **8** (in a random order).

From this information, can you determine the number of apples in a basket ?

There are 2 guesses which were off by 8. That means exact number must be guess (1) + 8 & guess (2) - 8. So those 2 guess must differ by 16 from each other. And there are 2 guesses in given list differing by 16 & those are 22 & 38. Hence the exact number of apples in a covered basket is

22 + 8 = 30

24 + 6 = 30

29 + 1 = 30

33 - 3 = 30

38 - 8 = 30

At the local model boat club, **four** friends were talking about their boats. There were a total of** eight** boats, two in each color,** red**, **green**,** blue** and **yellow**.

**1. **Each friend owned** two** boats.

**2. **No friend had two boats of the same color.

**3. Alan** didn't have a **yellow** boat.

**4. Brian** didn't have a **red** boat, but did have a **green** one.

**5. **One of the friends had a **yellow** boat and a **blue** boat and another friend had a **green **boat and a** blue** boat.

**6. Charles** had a** yellow** boat.

**7**. **Darren** had a** blue** boat, but didn't have a** green** one.

Can you work out which friend had which colored boats?

**Know here step by step process of finding owners!**

Can you work out which friend had which colored boats?

First let's rewrite all the clues here.

Let's make 2 set of 4 colors of boats. Below is the

Below are clues which giving clear idea of owner of particular colored boat.

3.

4.

6.

7.

We will fill this table one by one as per clues given.

Now, consider the first part of this clue.

Now

Let's assume

Two friends **Sachin** & **Rahul** are living in two different towns. Sachin wanted to send few **diamonds** to **Rahul** but there is big problem. Both Sachin & Rahul have lot's of **boxes** which can be locked with locks & keys. Both have multiple locks. There is only **1** **courier **service which can ship those diamonds & there is no other way. Even worse is that workers at that courier service have bad habit of **stealing** the goods from packages. But one** good** thing is that they don't take efforts to break locks if boxes being shipped are locked.

How**Sachin** should send diamonds to **Rahul**?

**This is what Sachin should do? **

How

What should

Now

In this way, in every journey there would be **always** lock (or 2 locks in journey of box from Rahul to Sachin) on the box. So workers won't get any chance** to steal** those diamonds.

You can place weights on both side of **weighing balance** and you need to measure all weights between **1** and **1000.** For example if you have weights 1 and 3,now you can measure 1,3 and 4 like earlier case, and also you can measure 2,by placing 3 on one side and 1 on the side which contain the substance to be weighed.

So question again is how many**minimum weights** and of what denominations you need to measure all weights from 1kg to 1000kg.

**We require only......Click here to know! **

So question again is how many

Just for a moment, let's assume we have to weigh

1, 2, 4, 6, 8, 10..........30

1 2, (2+1), 4, (4+1),6, (6+1), 8,(9+1),10..(29+1),30 .......For middle weights.

Now 6 can be weighed as 2 + 4 & 10 can be weighed as 2 + 8. We can eliminate those. That means we require only

1, 2, 4, 8, 16,

So we need weights of

Now if

1, 3, 6, 9, 12, 15, 18,...............30

For all weights ,

1, (3-1),3, (3+1), (6-1), 6, (6+1), (9-1),9, 12, 15,............30

But 6 can be weighed as 9-3 , 12 as 9+3, 15 as 27-(9+3). So we can eliminate 6,12,15... This leaves only

1, 3, 9, 27,

In short, we need

For the given problem we need to weight 1 to 1000 Kg with subtraction allowed. So the maximum power of 3 that is less than 1000 is

There are **100** people standing in a** circle** in an order 1 to 100. No. 1 has a **sword.** He **kills** the next person (i.e. No. 2) and gives the sword to the next (i.e. No. 3). All people do the same until only 1 survives. Which number survives at the last?

**Find who survived?**

First let's make it very simple by who are surviving after each round.

Round 1 : 1,3,5,7,9,11,13,15..........87,89,91,93,97,99

Round 2 : 1,5,9,13,17.........89,93,97

Round 3 : 1,9,17,25,33,41,49,57,65,73,81,89,97

Round 4 : 9,25,41,57,73,89

Round 5 : 9,41,73

Round 6 : 9, 73

At round 5, 9 kills 41 & passes sword to 73. So 73 kills 9 & survives.

Now let's analyze why how this happens & trick to get answer at the quickest.

Just for a moment let's assume there were 16 standing in circle.

Now after each round survived people are,

Round 1 : 1,3,5,7,9,11,13,15

Round 2 : 1,5,9,13

Round 3 : 1,9

Round 4 : 1

After round 2, when 9 kills 13 & passes sword to 1.

And in round 4, 1 kills 9. So 1 forms pair with other in every round.

Now imagine there were 17 people in circle.

Read the statement below. The task is given within the statement itself.

**They are three errirs in this question. Can you find them ? **

**Hint: **While first 2 errors can be easily spotted for the third one you need to think little more. Pay attention what statement is suggesting.

** **

**Errors listed here!**

** **

Here is 'that' statement once again.

1. They ......Should be

2. errirs......Must be spelled as

3. The statement states

There are** 25** horses among which you need to find out the **fastest 3 horses.** You can conduct race among at most** 5 **to find out their relative speed. At no point you can find out the **actual speed **of the horse in a race. Find out how many races are required to get the top 3 horses.

**Click here for logical answer!**

First we need to make

Taking out

Now let's name group of

For next race, we can eliminate few. Let's remind we have to find

1. Now

2. The

3. The

4. Similarly,

5.

You all must have played **Tic Tac Toe** in your childhood. Lets put your skills to test. Can you place **six X **(crosses) in a Tic Tac Toe board without making three in a row in any way?

**How? View here!**

It's pretty simple. All you need to do is not to start from the

Another way,

You are on your way to visit your Grandma, who lives at the end of the valley. It's her **birthday**, and you want to give her the cakes you've made.

Between your house and her house, you have to cross** 7 bridges,** and as it goes in the land of make believe, there is a **troll** under every bridge! Each troll, quite rightly, insists that you pay a** troll toll.** Before you can cross their bridge, you have to give them **half of the cakes** you are carrying, but as they are kind trolls, they each give you** back** a single cake.

How many cakes do you have to leave home with to make sure that you arrive at Grandma's with exactly 2 cakes?

Between your house and her house, you have to cross

How many cakes do you have to leave home with to make sure that you arrive at Grandma's with exactly 2 cakes?

No need to overthink on this. Just carry

At each toll they would take

So after each toll you would carry 2 cakes & last toll wouldn't be an exception.

In the picture that is attached with this question, you can find a **square **which comprises of **four **little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only **two squares** remain instead of five.How will you do it ?

**Challenge accepted here! **

Make it 2! |

All that you need to do is that remove these 2 match sticks labelled in figure below.

So we get exactly 2 squares as below.

There are **seven** sister in a house in a village where there is no electricity or

any gadget.

Sister-1: Reading Novel

Sister-2: Cooking

Sister-3: Playing Chess

Sister-4: Playing Sudoku

Sister-5: Washing clothes

Sister-6: Gardening

what is**Sister-7** doing ?

**She must be.....**

any gadget.

Sister-1: Reading Novel

Sister-2: Cooking

Sister-3: Playing Chess

Sister-4: Playing Sudoku

Sister-5: Washing clothes

Sister-6: Gardening

what is

Sister -7 must be

How many artifacts will be left with her when she reaches her destination crossing all the check points ?

Without any work to brain if she travels as it is through all checkpoints then at the end nothing would be left with her. Because at each checkpoint she has to shed

As a clever trader, she starts shedding artifacts from one box at each checkpoint. At first

For next

For final

So

On the festival of Raksha Bandhan (holy festival where brother-sister relationship celebrated), **Mayank** decides to visit his **3** sisters. He takes **certain** amount with in his wallet & goes to **first **sister. While without his notice **first** sister puts **equal **amount of money as in wallet. After tying rakhi, **Mayank** gifts her **Rs.2000.** Now he moves to **second** sister. While Mayank takes a breakfast, the **second** sister secretely** doubles** the money that was in** Mayank's** wallet. Again after tying rakhi,** Mayank** gifts her** Rs.2000.** At **third** sister's home, while he enjoys delicious lunch cooked by his sister, **third** sister **doubles** money in his pocket. Once again after tying rakhi, Mayank gifts third sister** Rs.2000.**Now there were **Rs.5000** in his wallet.

We need to go backward to get the answer.

3. At

2. At

1. At first sister's home he had

So Mayank took

However,

A donkey travels the exact same distance daily. Strangely **2** of his legs

travels**40 kilometers** and the remaining two travels **41 kilometers.**

Obviously 2 donkey legs cannot be a 1km ahead of the other 2.

The donkey is** perfectly normal.** So how come this be true ?

**Why so? Find it here!**

travels

Obviously 2 donkey legs cannot be a 1km ahead of the other 2.

The donkey is

I'm perfectly normal! |

The donkey is moving on a

This is my favorite puzzle which I had read in a newspaper. It really makes you to think more & more logically to get the answer. I had posted it back in July but re posting it here.

*"The scholarship will be awarded," *said the head to three candidates - **Chuckles, Wombat & Breeze** - *"to the winner in this little competition. I am going to chalk a cross, which will be either ***a green** or **a red** cross. I shall then ask each one who can see a **green**
cross to hold his hand up; and take his hand down as soon as he can
tell me what his own cross is. He must, of course, be able to explain
how his answer is arrived at. Kindly close your eyes for 10 seconds."

He chalked a**green** cross on all three foreheads. *"Go!"*

All three hands shot up in air ; that of**Chuckles** was almost immediately lowered. *"My cross is ***green** , Sir"

How did Chuckle know?

** **

**Read here how the story unfolds!**

** *** *

He chalked a

All three hands shot up in air ; that of

How did Chuckle know?

How many number of times you have come across this image?

By now, you might have accepted the **solution.**

"The hypotenuse is bulged in bottom figure which accounts area equal to missing square!"

But is this really a solution to this puzzle? The issue illustrated in clear manner**here!**

"The hypotenuse is bulged in bottom figure which accounts area equal to missing square!"

But is this really a solution to this puzzle? The issue illustrated in clear manner

A man was gazing through the window of the** 33rd floor** of the building. He suddenly opened the window and **jumped** on the other side of the window. On landing the floor, there was not a sheer mark of injury on him.

How can that be possible if he did not use any kind of parachute and did not land on a soft surface ?

** **

**Why he landed safely? Find Here! **

How can that be possible if he did not use any kind of parachute and did not land on a soft surface ?

The man was cleaning the window of

Four people need to **cross** a dark river at** night**. They have only **one torch** and the river is too risky to cross without the torch. If all people cross simultaneously then torch light won't be sufficient.** Speed **of each person of crossing the river is different.** Cross time** for each person is **1 min**,** 2 mins**,** 7 mins** and** 10 mins.**

However

What is the shortest time needed for all four of them to cross the river ?

Let's name each person by their

The instant solution that everyone can think of is using

Is it really efficient solution? What if we find a way to cross both

1. The

2. Now

3. Finally after coming back

So total

A man hijacks an **aeroplane** transporting both **passengers (8 **of them) and valuable** cargo.**After taking the cargo, the man demands **nine** parachutes, puts one of them on, and** jumps,** leaving the other eight behind. Why did he want other **eight?**

Had he demanded single parachute how can he be sure that it's not a

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