• Views : 60k+
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Mind Teasers : Logical Marble Riddle

Difficulty Popularity

There is a box which have 33 yellow marbles and 35 green marbles. You also have 34 green marbles outside the box.

Randomly remove two marbles from the box.
* If they are of different colors, put the yellow one back in the box.
* If they are the same color, take them out and put a green marble back in the box.

Repeat this until only one marble remains in the box.


What is the color of the sole marble left in the box ?

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

Mind Teasers : Simple Logic Shape Riddle

Difficulty Popularity

Can you place ten balls in five lines in a manner that each line has exactly four balls in it ?

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

Mind Teasers : Popular Dice Probability Riddle

Difficulty Popularity

You roll two six sided dices together.

Can you calculate the probability that the first dice gives the number 2 while the second dice gives the number 5?

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

Mind Teasers : Measure Water Supply Brain Teaser

Difficulty Popularity

You had an infinite supply of water and a 5 ml and 3 ml gallons.

How would you measure exactly 4 ml in least number of steps ?

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

Mind Teasers : Interview Marble Logic Puzzle

Difficulty Popularity

You are given a set of scales and 12 marbles. The scales are of the old balance variety. That is, a small dish hangs from each end of a rod that is balanced in the middle. The device enables you to conclude either that the contents of the dishes weigh the same or that the dish that falls lower has heavier contents than the other.
The 12 marbles appear to be identical. In fact, 11 of them are identical, and one is of a different weight. Your task is to identify the unusual marble and discard it. You are allowed to use the scales three times if you wish, but no more.

Note that the unusual marble may be heavier or lighter than the others. You are asked to both identify it and determine whether it is heavy or light.

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

Mind Teasers : Playing Cards Puzzle

Difficulty Popularity

I purchased five decks of card from the market and mixed them.
Now i have ( 5 * 52 = 260 cards).

What is minimum number of cards, i need to take out from the above 260 cards to guarantee at least one 'four of a kind'.

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

Mind Teasers : Guard Door Riddle

Difficulty Popularity

You are in a strange place which is guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there.
What should you ask?

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

Mind Teasers : 3 Gallon Brain Teaser

Difficulty Popularity

You have been given three jars of 3 liters, 5 liters and 8 liters capacity out of which the 8 liters jar is filled completely with water. Now you have to use these three jars to divide the water into two parts of 4 liters each.

How can you do it making the least amount of transfers?

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

Mind Teasers : Whats The Temperature Rebus

Difficulty Popularity

Below rebus represents the current Temperature.

0
=========
B.Sc
LLB

What is the current Temperature ?

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

Mind Teasers : Beer Cap Rebus Riddle

Difficulty Popularity

What does the beer cap say?

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

Mind Teasers : Classic Lateral Thinking Problem

Difficulty Popularity

There are two glasses in front of you. One of the glasses is full of coke and the other glass is full of lemonade. You take a spoonful of coke and mix it into the glass of lemonade. Now the lemonade glass has a mixture of coke and lemonade. You take a spoonful of that mixture and mix it inside the coke glass.

Now what do you think? - The glass with coke has more quantity of lemonade or the glass with lemonade have more quantity of coke mixed with it?

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