• Views : 90k+
• Sol Viewed : 30k+

# #1 - Popular Interview Problem

Difficulty Popularity

I have two rectangular bars.

They have property such that when you light the fire from one end , it will take exactly 60 seconds to get completely burn.
However they do not burn at consistent speed (i.e it might be possible that 40 percent burn in 55 seconds and next 60 percent can burn in 10 seconds).

Problem is : How do you measure 45 seconds ?

• Views : 60k+
• Sol Viewed : 20k+

# #2 - Popular Logical Riddle

Difficulty Popularity

A mules travels the same distance daily.
I noticed that two of his legs travels 10km and the remaining two travels 12km.
Obviously two mules legs cannot be a 2km ahead of the other 2.

The mules is perfectly normal. So how come this be true ?

• Views : 50k+
• Sol Viewed : 20k+

# #3 - Hard Chess Puzzle Problem

Difficulty Popularity

You need to win in half a move.

How can you do this ?

• Views : 60k+
• Sol Viewed : 20k+

# #4 - 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 ?

• Views : 80k+
• Sol Viewed : 20k+

# #5 - Intel Logical Interview Problem

Difficulty Popularity

Chanu bought an ice cream cone having 5 different flavor scoop.
The five flavors in random order are Jamaica, nutty-chocolate, peppermint, walnut and orange

These are some hints to help identify the puzzled reader to determine the order of flavor from top to bottom.
1. The bottom flavor of the cone has 7 letters.
2. The walnut scoop is at between Jamaica and the nutty-chocolate scoop.
3. walnut is above the orange scoop but below the nutty-chocolate scoop.

So can you figure out the flavor of ice cream in order from top to bottom?

• Views : 40k+
• Sol Viewed : 10k+

# #6 - Measuring Glass Puzzle

Difficulty Popularity

There are 2 sand measuring glasses.
The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand measuring glasses running together ?

• Views : 60k+
• Sol Viewed : 20k+

# #7 - Number Plate Maths Problem

Difficulty Popularity

I purchased a superb bike and like my bike my number plate is also superb.
The number plate is a five digit number plate and its water image is 78633 more than the number plate.
Also all digits are unique.

Whats is my number plate number ?

• Views : 30k+
• Sol Viewed : 10k+

# #8 - Infosys Hard Logic Interview Puzzle

Difficulty Popularity

Three sisters are identical triplets.
=> The oldest(in minutes) is aishwarya and she always speaks the truth
=> Next to aishwarya is kareena and she always lies.
=> The youngest of three sister is katrina and she sometimes lies and sometimes tells the truth.

Salman, an old friend of the sisters visited them after a long time and did not recognize them.
=> Salman asked the sister that was sitting on the left, 'Which sister is in the middle of you three?' and the answer she received was, 'Oh, that's aishwarya.'
=> Salman then asked the sister in the middle, 'What is your name?' The response given was, 'I am katrina'
=> Salman turned to the sister on the right, then asked, 'Who is that in the middle?' The sister then replied, 'He is kareena.'

Salman got confused.

Who was who ?

• Views : 30k+
• Sol Viewed : 10k+

# #9 - River Crossing Problem

Difficulty Popularity

A guard is positioned at the one side of bridge say 'A'.
* His task is to shoot all those who try to leave from 'A' to other side say 'B'.
* He also need to welcome the person who come from other side 'B' to his side 'A'.

The guard comes out of his post every 1 hour and looks down the bridge for any people trying to leave.
Monica a brilliant girl is at side 'A' and wish to go to other side 'B'. She also know's it would take her 1:45 hr to cross the river.

She comes with an super idea and able to cross the river.How did Monica cross the river ?

• Views : 60k+
• Sol Viewed : 20k+

# #10 - Long Puzzle

Difficulty Popularity

Sophie have 8 toys(Toy1 Toy2 Toy3 Toy4 Toy5 Toy6 Toy7 Toy8).
She arrange all the toys to face towards me and then give me the following clues :

* Toy1 has three toys bigger on its left side
* Toy2 has two toys smaller on its left side
* Toy3 has one puppet bigger on its right side
* Toy4 has two toys smaller on its right side
* Toy5 has one puppet bigger on its left side
* Toy6 has one puppet smaller on its left side
* Toy7 has four toys bigger on its right side
* Toy8 has three toys smaller on its right side

Also some toys are inside the bigger toys.
she asked me how these toys are arranged.

can you help me ?

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