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Mind Teasers : 4 + 9 != 13

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If the following is true, can you find the value of (4 + 9)?

7 + 7 = 2
8 + 8 = 4
8 + 5 = 1
6 + 9 = 3
10 + 11 = 9

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Mind Teasers : Photo Riddle Brain Teaser

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In the given picture, there is a fly in the wine glass depicted by the sticks. You have to remove the fly from the glass. You can move only two sticks. Also, you can’t touch the fly

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Mind Teasers : Quick Thinking Maths Problem

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A petri dish kept in a lab has a colony of healthy bacteria. Every bacterium divides itself into two in exactly two minutes. Now the colony started with a single cell at 2 pm. If the petri dish was exactly half full of bacteria at 3 pm, when will the dish become full of bacteria?

By Admin
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Mind Teasers : Trick Statement Puzzle

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Can you find out if the following statement is true?

It does not matter how much older the sibling is, their younger one will eventually be half as old as the elder one.

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Mind Teasers : Tricky Brain Teaser Problem

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I was invited on a pet show by a fellow colleague. Since I was a bit busy that day, I sent my brother to the show. When he returned back I asked him about the show. He told me that all except two animals were fishes, all except two animals were cats and all except two entries were dogs.

To his statement I was a bit puzzled and I could not understand how many animals of each kind were present in that pet show. Can you tell me?

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Mind Teasers : Eight Eights Brain Teaser

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Using eight eights and addition only, can you make 1000?

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Mind Teasers : Maths Magic - Square Root 12345678987654321 Brain Teaseer

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

By Admin
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Mind Teasers : Find KIller From Calendar Puzzle

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In a friend's get together party on New Year's Eve, a power cut takes place unexpectedly. When the lights go live again, it is found that Joseph, one of the friends has been stabbed to death. Since no one else had the access to the party, the killer is one of the friends only.

Police are called and they search the surroundings for any evidence, but can't find any. Upon checking the pockets of Joseph's pants, they find a pocket calendar and they find out that it has been marked and can also find some numbers written on it.

You can see the calendar attached with this question.

You don't know the name of the friends who were there at the party. Can you still decipher the name of the killer through the picture?

By Admin
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Mind Teasers : Playing Cards Logic Riddle

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Dr. Watson has a new card puzzle for Sherlock Holmes. He picks four cards out of the pack of 52 cards and lays them face down on the table. He offers four hints to Sherlock.
1) The left card can’t be greater than the one on right.
2) The difference between the first card and third card equals to eight.
3) None of the Ace is present
4) No face card has been included i.e. no queen king and jacks.
5) The difference between the second and fourth card is 7.
Sherlock smiles and tells all the four cards to Dr. Watson.

Can you tell the four cards?

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Mind Teasers : Awesome Probability Logic Riddle

Difficulty Popularity

You need to divide 50 marbles(25-red and 25-blue) into two boxes such that the probability of picking red marble is maximized.

Following conditions need to hold true :
1. None of box is empty
2. All the marbles must be in one of two boxes.

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Mind Teasers : Impossible Maths Science Riddle

Difficulty Popularity

Cindy throws a ball from a 90 feet building. The ball is quite bouncy and when it hits the ground, it bounces back half way up. It keeps bouncing back to half way up.

How many bounces will the ball take before it comes to a permanent halt?

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