Mind Teasers : CID Murder Mystery Problem

Difficulty Popularity

An old man ankit lives alone in a flat. Because of his age , he is not able to move comfortably and hence most of the things used to be delivered to his house.

On Friday while delivering the mail , postman feels something suspicious in the flat and try to look inside through the key hole and he saw a blood filled body of the old man.

CID arrived the scene.
On the outside of flat , he found two bottles of warm milk , Tuesday newspaper, some unopened mails , some gifts.

CID waste no time to find the murderer.

Who was the murderer ?
category : LOGIC | MYSTERY

Suggestions

Mind Teasers : Whats The Temperature Rebus

Difficulty Popularity

Below rebus represents the current Temperature.

0
=========
B.Sc
LLB

What is the current Temperature ?
category : REBUS

Mind Teasers : New Answer Riddle

Difficulty Popularity

There is a puzzle which can be asked all day with a different correct answer each time. What is the puzzle ?
category : TRICK

Mind Teasers : IAS Logical Question

Difficulty Popularity

An old man in the village feels that his end is near. He calls his two sons to discuss about the land he owns and other properties. He tells them to have a race on their horses till the city border. The one with the slower horse will be rewarded with the entire property.

Both of them keep wandering here or there without any result as no one is filling to reach the border. Then they visit the wise man of the village and seek his advice. The wise men tells them something listening to which they jump on the horses and race as fast as they can till the city border.

What did the wise man tell them?
category : LOGIC

Mind Teasers : Game Of Dice Brain Teaser

Difficulty Popularity

A unique solo game of dice is being played. Two dices are thrown in each turn and the scores are taken by multiplying the numbers obtained.

Now talking about a particular game, here are the facts:
1) The score for the second roll is five more than the score for the first roll.
2) The score for the third roll is six less than the score for the second roll.
3) The score for the fourth roll is eleven more than the score for the third roll.
4) The score for the fifth roll is eight less than the score for the fourth roll.

Reading the above facts, can you tell the score for each of the five throws?
category : LOGIC

Mind Teasers : Hard Ten Boxes Interview Puzzle

Difficulty Popularity

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

Mind Teasers : Maths Magic Riddle

Difficulty Popularity

I can prove why 1 = 2

Step1. Lets say y = x
Step2. Multiply through by x xy = x2
Step3. Subtract y2 from each side xy - y2 = x2 - y2
Step4. Factor each side y(x-y) = (x+y)(x-y)
Step5. Divide both sides by (x-y) y = x+y
Step6. Divide both sides by y y/y = x/y + y/y
Step7. And so... 1 = x/y + 1
Step8. Since x=y, x/y = 1 1 = 1 + 1
Step9. And so... 1 = 2

How is this possible ?

Mind Teasers : River Crossing Brain Teaser

Difficulty Popularity

River Thames needs to be crossed by Mr. Father, Mrs. Mother, A Thug, A Policeman, 2 dogs and 2 Cats. There is only one boat, which can carry only two people (or a person and an animal or two animals) at a time. Only the humans (excluding the thug) know how to operate the boat. The boat must travel back and forth across the river in order to pick up all of the people and animals.
Following rules must be followed at all times:
Mr. Father: Mr. Father cannot stay with any of the cats, without Mrs. Mother's presence.
Mrs. Mother: Mrs. Mother cannot stay with any of the dogs, without Mr. Father's presence.
Thug: The thug cannot stay with anyone, if the policeman is not there.
Policeman Allowed to travel with everyone.
2 Dogs, 2 Cats: Not allowed to travel without a human, or be in the presence of the thug without the policeman's supervision.
The dogs are not allowed to be in the presence of Mrs. Mother without the supervision of Mr. Father.
Similarly, The cats are not allowed to be in the presence of Mr. Father without the supervision of Mrs. Mother.
Both the dogs and cats are allowed to be unsupervised (provided the other rules are satisfied.)
How will everyone get to the other side of the river Thames? None of the rule can be broken, and all rules apply on the boat as well as on the land.
category : LOGIC

Mind Teasers : Tricky Logic Question

Difficulty Popularity

A claustrophobic person boards a train that is just about to enter a tunnel.

Which place will be the best for him to sit?

Mind Teasers : Maths Magic - Square Root 12345678987654321 Brain Teaseer

Difficulty Popularity

We all know that square root of number 121 is 11.
But do you know what si the square root of the number "12345678987654321" ?
category : LOGIC | MATHS

Mind Teasers : Prime Number < 100 Puzzle

Difficulty Popularity

Can you list all the prime numbers than 100 which when divided by 5 leaves an odd remainder?
category : MATHS

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