• Views : 70k+
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Mind Teasers : Maths Tap Puzzle

Difficulty Popularity

I have an amazing bath tub having both hot and cold water taps.
The cold water tap can fill my tub in 6 hours while cold water tap can fill the tub in approx 4 hours.
I turned them on simultaneously but forgot to close the lid which remove water out of tub.
The lid can empty the tub in exact 13 hours.

Since both taps are open along with the lib , can you estimate the time needed to fill the bath tub ?

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  • Views : 40k+
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Mind Teasers : Nine Coins Picture Puzzle

Difficulty Popularity

Nine coins are arranged in a triangle as shown in the picture below. You need to slide two triangles to form a square. Can you do it?


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Mind Teasers : Lateral Thinking Puzzle

Difficulty Popularity

Sachin new ferrari car has five wheels(two front wheels, two Rear wheels and one spare wheel).
Real car Wheel will wear out in exact 21000 miles and front wheel will wear out after exact 29000 miles.

What is the maximum distance sachin can cover.

Note: unlimited numbers of changing the tyres can take place.

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

Mind Teasers : Popular Logic Brain Teaser

Difficulty Popularity

A girl liked to collect money in a piggy bank. She bought pink colored piggy bank when she was 10 years old. She put $250 in the box on each of her birthday. Her younger sister took $50 out of her piggy bank on her birthday. The girl died when she was 50 years old due to an incurable disease.

When the piggy bank was opened, it had just $500. How can that be possible?

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

Mind Teasers : Trick Answer Riddle

Difficulty Popularity

In Era of Abraham Lincoln, there is a world famous surgeon whose more than 90% surgeries are successful and yet almost all of his patients die.

Explain ?

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Mind Teasers : Tricky Math Race Riddle

Difficulty Popularity

Rooney, Hernandez, and Robin race each other in a 100 meters race. All of them run at a constant speed throughout the race.

Rooney beats Hernandez by 20 meters.
Hernandez beats Robin by 20 meters.

How many meters does Rooney beat Robin by ?

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

Mind Teasers : Famous Probability Puzzle

Difficulty Popularity

This is a famous probability puzzle in which you have to choose the correct answer at random from the four options below.
Can you tell us whats the probability of choosing correct answer in this random manner.

1) 1/4
2) 1/2
3) 1
4) 1/4

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

Mind Teasers : Math Number Riddle

Difficulty Popularity

A man wanted to get into his work building, but he had forgotten his code. However, he did remember five clues. These are what those clues were:

The fifth number plus the third number equals fourteen.

The fourth number is one more than the second number.

The first number is one less than twice the second number.

The second number plus the third number equals ten.

The sum of all five numbers is 30.

What were the five numbers and in what order?

  • Views : 70k+
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Mind Teasers : Logical Problem

Difficulty Popularity

Four stupid friends meet each other after long time.They are so stupid that they start talking about their suits

* There were a total of eight suits, two in each color, black, brown, pink and white.
* Each friend owned two suits.
* No friend had two suits of the same color.
* Ganpat don't have a white suit.
* Harish don't have a black suit, but did have a brown one.
* One of the friends had a white suit and a pink suit and another friend had a brown suit and a pink suit.
* Manoj had a white suit.
* Tarun had a pink suit, but don't have a brown one.

Can you work out which friend had which color suits?

  • 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 : 70k+
  • Sol Viewed : 20k+

Mind Teasers : Picture Brain Teaser

Difficulty Popularity

You can see the figure or draw one of your own. The scenario is as shown. There are three houses represented with the triangle over the square. There are three utilities: W, G and E representing water, gas and electricity respectively.

Can you draw a line and get each utility into every house (9) total lines without ever crossing any line?

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