Object: Create certain concentrations of salt solutions. 
 
You are given two jugs, one with 3 liters capacity and one with 5 liters capacity, an unlimited supply of water and a salt tablet. The salt tablet produces a 100% salt solution when dropped into one liter of water.
The challenge is to produce different concentrations of salt solution.
 
The large numbers underneath the jugs show the current numbers of liters in the jug.
Click one of the top drops to fill a jug with water.
Click one of the bottom drops to dump the content of a jug into the drainage.
 
To pour water from one jug into another, click the top of the water level in one jug and move it across to another jug. The second jug will always get filled to the rim.
 
Each variant asks for a different concentration of solution and/or amount of solution. Numbers next to the jugs show the concentrations of the solutions. Unknown or (for the variant) unimportant concentrations will be marked as '???'.

All variants have a solution file asssociated with them.
 
 
The salt water problem as such is widely known. In the original version you have to calculate the salt concentrations yourself, of course. This Zillions game 'Saltwater' makes the problem less hard in that it calculates the salt concentrations for you.
 
 
More freeware as well as real puzzles and games at my home page http://karl.kiwi.gen.nz.