• Views : 90k+
• Sol Viewed : 30k+

Measuring Puzzles #1 - Tough Two Jug Measuring Puzzle

Difficulty Popularity

I got two jugs of
A) 11 liter
B) 6 liter

How can I measure exactly 9 liters ?

• Views : 90k+
• Sol Viewed : 30k+

Measuring Puzzles #2 - 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 : 50k+
• Sol Viewed : 20k+

Measuring Puzzles #3 - Weight Balance Riddle

Difficulty Popularity

You can place weights on both side of weighing balance and you need to measure all weights between 1 and 1000. For example if you have weights 1 and 3,now you can measure 1,3 and 4 like earlier case, and also you can measure 2,by placing 3 on one side and 1 on the side which contain the substance to be weighed. So question again is how many minimum weights and of what denominations you need to measure all weights from 1kg to 1000kg.

• Views : 70k+
• Sol Viewed : 20k+

Measuring Puzzles #4 - Famous Water Jug Problem

Difficulty Popularity

You live in Dubai and had an infinite supply of oil and a 5 liters and 3 liters jar,
how would you measure exactly 4 liters (of-course in minimum numbers of step) ?

• Views : 30k+
• Sol Viewed : 10k+

Measuring Puzzles #5 - Tricky Time Measure Puzzle

Difficulty Popularity

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

• Views : 50k+
• Sol Viewed : 20k+

Measuring Puzzles #6 - Hour Glass Logical Riddle

Difficulty Popularity

I have two sand hour glasses:
1. A 7 minute one and
2. An 11 minute one.

Using just these 2 sand hour glasses, how can i measure time as 15 minutes ?

• Views : 40k+
• Sol Viewed : 10k+

Measuring Puzzles #7 - 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 : 40k+
• Sol Viewed : 10k+

Measuring Puzzles #8 - Interview Hourglass Puzzle

Difficulty Popularity

I have two hourglasses
A) Measures an exact 7 hours
B) Measures an exact 4 hours.

Using these two hour glasses, you need to measure an exact nine hours ?

• Views : 30k+
• Sol Viewed : 10k+

Measuring Puzzles #9 - Weighing Bar Problem

Difficulty Popularity

The puzzle is if the shopkeeper can only place the weights in one side of the common balance.
For example: if shopkeeper has weights 1 and 3 then he can measure 1, 3 and 4 only.

Now the question is how many minimum weights and names the weights you will need to measure all weights from 1 to 1000.

• Views : 30k+
• Sol Viewed : 10k+

Measuring Puzzles #10 - Water Gallon Puzzle

Difficulty Popularity

There are 3 gallons A B C.

Gallon A having max capacity of 8 liters is currently filled with 5 liters of Water.
Gallon B having max capacity of 5 liters is currently filled with 3 liters of Water.
Gallon C having max capacity of 3 liters is currently filled with 2 liters of Water.

How can you measure 1 liter of Water in minimum number of steps ?

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