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Logic Puzzles #1 - 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 ?

Logic Puzzles #2 - Survive The Fire Brain Teaser

Difficulty Popularity

Isaac Newton is stranded on an island covered in forest.

One day, when the wind is blowing from the west, lightning strikes the west end of the island and sets fire to the forest. The fire is very violent, burning everything in its path, and without intervention the fire will burn the whole island, killing the man in the process.

There are cliffs around the island, so he cannot jump off.

How can the Isaac Newton survive the fire? (There are no buckets or any other means to put out the fire)

  • Views : 80k+
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Logic Puzzles #3 - Cake Grandma bridge Logic Problem

Difficulty Popularity

Rohit is on his way to visit your Grandma, who lives at the end of the state.It's her birthday, and he want to give her the cakes that he has made.Between his place and her grandma house, he need to cross 7 toll bridges.
Before you can cross the toll bridge, you need 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 rohit have to carry with him so he can reach his grandma home with exactly 2 cakes?

  • Views : 30k+
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Logic Puzzles #4 - Tricky Time Measure Puzzle

Difficulty Popularity

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

  • Views : 40k+
  • Sol Viewed : 10k+

Logic Puzzles #5 - Whats the Motto of killing Problem

Difficulty Popularity

A girl, at the funeral of her mother, met a guy whom she did not know. She fell for him and just kept looking at him.Sometime later she realized that the guy is gone and she forgot to take the number of the guy and now she can't find him. A few days later she killed her elder brother.
Question: What is her motive in killing her brother ?

  • Views : 40k+
  • Sol Viewed : 10k+

Logic Puzzles #6 - Guess Game Logic Problem

Difficulty Popularity

In a guess game , five friends had to guess the exact numbers of balls in a box.
Friends guessed as 31 , 35, 39 , 49 , 37, but none of guess was right.The guesses were off by 1, 9, 5, 3, and 9 (in a random order).
Can you determine the number of balls in a box ?

  • Views : 40k+
  • Sol Viewed : 10k+

Logic Puzzles #7 - Correct Statement Brain Teaser

Difficulty Popularity

There are three bags in a table. One of the bag contains cash and the other two are empty. A printed message contains in each bag. One of the message is true and the other two are lies.
The first bag says 'The cash is not here'.
The Second bag says 'The cash is not here'.
The Third bag says 'The cash is in the Second bag'.
Which bag has the cash?

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

Logic Puzzles #8 - Red | Blue | White Logical Riddle

Difficulty Popularity

At a restaurant downtown, Mr. Red, Mr. Blue, and Mr. White meet for lunch. Under their coats they are wearing either a red, blue, or white shirt.Mr. Blue says, 'Hey, did you notice we are all wearing different colored shirts from our names?' The man wearing the white shirt says, 'Wow, Mr. Blue, that's right!'
Can you tell who is wearing what color shirt?

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

Logic Puzzles #9 - Numbers For Buildings Problem

Difficulty Popularity

My town contains 100 buildings.
They are numbered from 1 to 100. How many 6's are used in these numbers ?

  • Views : 30k+
  • Sol Viewed : 10k+

Logic Puzzles #10 - Weighing Bar Problem

Difficulty Popularity

The puzzle is if the shopkeeper can only place the weights in one side of the common balance.
For example: if shopkeeper has weights 1 and 3 then he can measure 1, 3 and 4 only.

Now the question is how many minimum weights and names the weights you will need to measure all weights from 1 to 1000.

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