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There are 100 doors. 100 strangers have been gathered in the adjacent room. The first one goes and opens every door. The second one goes and shuts down all the even numbered doors – second, fourth, sixth... and so on. The third one goes and reverses the current position of every third door (third, sixth, ninth… and so on.) i.e. if the door is open, he shuts it and if the door is shut, he switches opens it. All the 100 strangers progresses in the similar fashion.

After the last person has done what he wanted, which doors will be left open and which ones will be shut at the end?
**category** :
LOGIC

After the last person has done what he wanted, which doors will be left open and which ones will be shut at the end?

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You roll two six sided dices together.

Can you calculate the probability that the first dice gives the number 2 while the second dice gives the number 5?

Can you calculate the probability that the first dice gives the number 2 while the second dice gives the number 5?

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1 pound = 100 penny

= 10 penny x 10 penny

= 1/10 pound x 1/10 pound

= 1/100 pound

= 1 penny

=> 1 pound = 1 penny

Solve this math trick question ?

= 10 penny x 10 penny

= 1/10 pound x 1/10 pound

= 1/100 pound

= 1 penny

=> 1 pound = 1 penny

Solve this math trick question ?

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Jamie looked at his reflection on the window mirror of the 45th floor. Driven by an irrational impulse, he made a leap through the window on the other side. Yet Jamie did not encounter even a single bruise.

How can this be possible if he did neither landed on a soft surface nor used a parachute?

How can this be possible if he did neither landed on a soft surface nor used a parachute?

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Create a number using only the digits 4,4,3,3,2,2,1 and 1. So i can only be eight digits. You have to make sure the ones are separated by one digit, the twos are separated by two digits the threes are separated with three digits and the fours are separated by four digits

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You have ten boxes and an electronic weighing machine. In those ten boxes, you have chocolates. Each chocolate weigh 20 grams. But in one box the chocolates are defective and each weigh 19 grams exactly.

Now you can weigh in the electronic weighing machine but you can use that machine just once. How will you find out which box has the defected chocolates.
**category** :
LOGIC

Now you can weigh in the electronic weighing machine but you can use that machine just once. How will you find out which box has the defected chocolates.

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A Japanese ship was making its way through the Arabian Sea. The captain felt like taking a bath and thus went to the bathroom after removing his Rolex watch and gold bracelet. When he returned back from the bathroom, he found out that his valuables were missing.

He suspected five of his crew members. He called them in and asked all of them what they were doing for the last 15 minutes. They replied as follows:parachute

The French cook (with a butcher knife): I was in fridge room getting meat for cooking.

The German Engineer (with some tools in hand): I was working on the generator engine.

The Bangladeshi seaman (empty handed): I was on the mast correcting the flag which was upside down by mistake.

The American Radio officer (with his headphones in hand): I was messaging to company that we will reach the port in the next two days that is Friday morning at 1100 hrs.

The Indian navigation officer (empty handed): I was taking a nap before my night watch began.

Upon hearing all of them, the captain found out who was the thief. How did he know that? Who is the thief?

He suspected five of his crew members. He called them in and asked all of them what they were doing for the last 15 minutes. They replied as follows:parachute

The French cook (with a butcher knife): I was in fridge room getting meat for cooking.

The German Engineer (with some tools in hand): I was working on the generator engine.

The Bangladeshi seaman (empty handed): I was on the mast correcting the flag which was upside down by mistake.

The American Radio officer (with his headphones in hand): I was messaging to company that we will reach the port in the next two days that is Friday morning at 1100 hrs.

The Indian navigation officer (empty handed): I was taking a nap before my night watch began.

Upon hearing all of them, the captain found out who was the thief. How did he know that? Who is the thief?

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There stand nine temples in a row in a holy place. All the nine temples have 100 steps climb. A fellow devotee comes to visit the temples. He drops a Re. 1 coin while climbing each of the 100 steps up. Then he offers half of the money he has in his pocket to the god. After that, he again drops Re. 1 coin while climbing down each of the 100 steps of the temple.

If he repeats the same process at each temple, he is left with no money after climbing down the ninth temple. Can you find out the total money he had with him initially?

If he repeats the same process at each temple, he is left with no money after climbing down the ninth temple. Can you find out the total money he had with him initially?

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A professor gives a set of three questions to the most brilliant students of his university. You can see the questions in the attached image if required. To his surprise, there are different answers by all three of them. Below are the answers by them:

Student A

1. Two

2. Six

3. Two

Student B

1. Two

2. Three

3. Infinity

Student C

1. One

2. Three

3. Two

Now you have the information that each one of them has given one answer wrong, can you find out the real answers to every problem?

Student A

1. Two

2. Six

3. Two

Student B

1. Two

2. Three

3. Infinity

Student C

1. One

2. Three

3. Two

Now you have the information that each one of them has given one answer wrong, can you find out the real answers to every problem?

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In the Wild West, you challenge two cowboys - Hunter Jack and Sharp Shooter Leo into a death match. They being better shooter than you readily accept your challenge. But they don't want to waste bullets and thus lay down a certain rules that are accepted by you as well. Here are the rules:

1) Everyone shoot in a given order till only one is left.

2) Everyone shoot only once when his turn arrive.

3) If any one of you is injured, the other two will finish him off together.

4) The worst shooter gets to shoot first (which is you) and the best one shoots at the last.

Now, what tactics will you use if you know that you hit every third shot of yours, Jack hits every second shot and Leo hits every shot?

1) Everyone shoot in a given order till only one is left.

2) Everyone shoot only once when his turn arrive.

3) If any one of you is injured, the other two will finish him off together.

4) The worst shooter gets to shoot first (which is you) and the best one shoots at the last.

Now, what tactics will you use if you know that you hit every third shot of yours, Jack hits every second shot and Leo hits every shot?

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