Measuring 4 and 4 Litres Puzzle

Measuring 4 and 4 Litres
You are camping, and have an 8-liter bowl which is full of fresh water.

You need to share this water fairly into exactly two portions (4 + 4 liters).

But you only have two empty bowls: a 5-liter and a 3-liter bowl.

Divide the 8 liters in half in as short a time as possible.




Our Solution:
Pour 5 liters from the 8-liter to the 5-liter bowl.

Pour 3 liters from the 5-liter to the 3-liter bowl, then pour those 3 liters back to the 8-liter bowl (the 8-liter bowl now has 6 liters).

Pour the remaining 2 liters from the 5-liter over to the 3-liter bowl, the bowls now contain 6, 0 and 2 liters each.

Now, pour 5 liters from the 8-liter to the 5-liter bowl (the 8-liter bowl now has 1 liter)

Pour from the 5-liter to the 3-liter bowl until it is full (exactly one liter). There should now be 4 liters left in the 5-liter bowl,

Pour the 3 liters from the 3-liter to the 8-liter bowl (and now the 8-liter bowl has 4 liters)

The 8-liter and 5-liter bowls now have 4 liters each, as required. And you will not be accused of bias by your fellow campers!

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Measuring 2, 2 and 3 Liters Puzzle

You have three bowls: 7, 4 and 3 liters in capacity.
Only the 7-liter is full.
Pour the fewest times to have the bowls containing 2, 2 and 3 liters.
Our Solution:
Fill the 4-liter from the 7-liter bowl.
Fill the 3-liter from the 4-liter bowl.

You will have 3 liters left in the 7-liter,1 liter in the 4-liter and 3 in the 3-liter bowl. (Let us abbreviate that as 3,1,3)

Now pour from the 3-liter to the 7-liter bowl, and then pour the 1 liter left in the 4-liter bowl to the 3-liter bowl. (Now it looks like 6,0,1)

Now fill the 4 from the 7 (Now it looks like 2,4,1)
Now fill the 3 from the 4 (Now it looks like 2,2,3)

And you are done: 2, 2 and 3 liters !

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Measure exactly 2 liters of water

Measure exactly 2 liters of water if you have:

1) 4 and 5-liter bowls
2) 4 and 3-liter bowls




Our Solution:
1) Fill the 5-liter bowl, pour water from it to fill the 4-liter bowl, which you empty afterwards.

Pour the remaining 1 liter to the 4-liter bowl.

Refill the 5-liter bowl and then carefully pour water from it to fill the 4-liter bowl (where there is already 1 liter). This will only need 3 liters.

Thus you are left with 2 liters in the 5-liter bowl, as requested.

2) The same principle - this time from the other end. Fill the 3-liter bowl and pour all of the water to the 4-liter bowl.

Refill the 3-liter bowl and fill the 4-liter bowl to the top.

And then you have 2 liters left in the 3-liter bowl.

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