Mind Teasers : Maths IES Brain Teaser

Difficulty Popularity

A thief is running after stealing two gold bars from an ancient and sacred temple. The villagers see him running and runs after him. While running, he comes across a rope bridge. There is a warning board on the start of the bridge stating that the rope can only accommodate a weight of 130 pounds.

Now the thief weighs 100 pounds and the gold bars weigh 20 pounds each. But ignoring the warning he just crosses the bridge with both gold bars. He manages to cross safely. How?

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Mind Teasers : Logic Interview Riddle

Difficulty Popularity

prinka and tanu organized a small kitty party at home. They purchased a barrel of fruit juice.

Tanu told to prinka 'I bet this barrel of fruit juice is more than half full'.
'No, its less than half full' prinka replied.

I don't have any measuring instrument and without removing fruit juice from it , how can i determine which of us is right ?
category : LOGIC

Mind Teasers : Passcode Puzzle

Difficulty Popularity

Shruti's daughter Arshika need to be picked from the school every day.
Shruti asks one of her colleagues to pick her from school. Shruti devised a password mechanism to confirm that Arshika goes with the correct person only.
The password on Monday was SAM16.
The password on Wednesday was HRW39.

What will the password for Friday?


category : LOGIC | CIPHER

Mind Teasers : What Do you See - Brick Optical Illusion Riddle

Difficulty Popularity

What except brick can you see in the picture below?

category : PICTURE

Mind Teasers : Lateral thinking picture puzzle

Difficulty Popularity

In the given picture, you can find a few numbers. Now you have to fill each square of the grid in a manner that every row and every column contains the digits 1 to 6. Another thing to keep in mind is that the connected squares must have the same number in them.

Do you accept the challenging task?

category : LOGIC | PICTURE

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 : Cool Equation Riddle

Difficulty Popularity

If 1 + 9 + 11 = 1, Then what is the value of

12 + 11 + 9 = ?

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?
category : LOGIC

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?

Mind Teasers : Famous Priest Well Puzzle

Difficulty Popularity

An old priest fell on a bottom of the well of a church.
The well is 20 inches deep.

At day time, the old priest climbs 5-inches but when at dark he slip back 4 inches.
In how many days priest will come out of the well ?

Mind Teasers : NewsPaper Riddle

Difficulty Popularity

A newspaper is supposed to have 60 pages.Pages 14 and 21 are missing from the newspaper.

Can you tell me , Which other pages won't be there as well ?
category : LOGIC

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