• Views : 80k+
  • Sol Viewed : 20k+

Mind Teasers : Crossing Bridge Brain Teaser

Difficulty Popularity

Four friends need to cross a dangerous bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

Discussion
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  • Views : 50k+
  • Sol Viewed : 20k+

Mind Teasers : Hard IAS Brain Twister

Difficulty Popularity

An international IQ test is held on knockout terms in November 2013. The final contestants are from Britain and America respectively. Both of them are handed over the final test paper which they have to fill for evaluation. They have to write their names and date on the paper. When the evaluators are handed over the sheets, they find out that both the guys have same name. In no manner can they identify which sheet belongs to whom.

Can you identify the date on which the competition was held?

  • Views : 60k+
  • Sol Viewed : 20k+

Mind Teasers : Famous Cross The River Logic Puzzle

Difficulty Popularity

Michelangelo is being chased by a couple of cannibals who will kill him as soon as they get a hold of him. The only way to get rid of them is crossing the river bridge made of ropes and cut it on reaching the other end. He have found two diamonds in the woods each weighing 8 lbs. The rope is weak and can only accommodate a weight of 150 lbs. He weighs 140 lbs. Still he manages to cross the bridge and get rid of the cannibals with the diamonds without taking off any kind of clothing.

How?

  • Views : 70k+
  • Sol Viewed : 20k+

Mind Teasers : Most Popular Monty Hall Brain Teaser

Difficulty Popularity

The host of a game show, offers the guest a choice of three doors. Behind one is a expensive car, but behind the other two are goats.

After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter ?

  • Views : 50k+
  • Sol Viewed : 20k+

Mind Teasers : Measuring Time Logic Puzzle

Difficulty Popularity

You are given with two ropes with variable width. However if we start burning both the ropes, they will burn at exactly same time i.e. an hour. The ropes are non-homogeneous in nature. You are asked to measure 45 minutes by using these two ropes.

How can you do it?

Please note that you can’t break the rope in half as it is being clearly stated that the ropes are non-homogeneous in nature.

  • Views : 80k+
  • Sol Viewed : 20k+

Mind Teasers : Best Thinking Brain Teaser Ever

Difficulty Popularity

Three men are living in a desert namely – Alex, Brian and Chris.

Alex hates Chris and thus he decides to kill him. To succeed in his evil intentions, he poison the water supply of Chris. Since they are living in desert, he will have to drink water or he will die of thirst.

Brian is not aware of the actions of Alex and he plans to kill Chris as well. To do this, he killed the water supply of Chris.

Chris dies due to his thirst. Who killed him?

  • Views : 70k+
  • Sol Viewed : 20k+

Mind Teasers : Unlock The Distance Puzzle

Difficulty Popularity

Distances from you to Man united is written below.

CHELSEA and ARSENAL are 700 kms away
SPURS 1800 kms away
WOLVES 200 kms away

Based on the system , How far should it be to MANCITY ?

  • Views : 60k+
  • Sol Viewed : 20k+

Mind Teasers : Deductive Logic Problem

Difficulty Popularity

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?

  • Views : 50k+
  • Sol Viewed : 20k+

Mind Teasers : Logic Fruits Riddle

Difficulty Popularity

There is a box full of fruits,
all but two are grapes,
all but two are apples,
and all but two are oranges.

How many fruits are in the box ?

  • Views : 80k+
  • Sol Viewed : 20k+

Mind Teasers : Smart Birbal Riddle

Difficulty Popularity

Akbar called Birbal and asked him to draw a line on the floor. He asked Birbal to make that line smaller without erasing it. Birbal smiled and did it before Akbar could blink his eyes.

How did he managed to do it?

  • Views : 90k+
  • Sol Viewed : 30k+

Mind Teasers : Birbal Brain Teaser

Difficulty Popularity

Birbal is a witty trader who trade of a mystical fruit grown far in north. He travels from one place to another with three sacks which can hold 30 fruits each. None of the sack can hold more than 30 fruits. On his way, he has to pass through thirty check points and at each check point, he has to give one fruit for each sack to the authorities.

How many mystical fruits remain after he goes through all the thirty check points?

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