3-Jars Publisher Mantisoft Category Puzzle & Quiz Licence Freeware The goal is simple. You have three jars and you have to place four units of water in two of them. The only problem is, you have to manipulate the three different sized jars so that you can accomplish this without a measuring cup. File Type System Description 3jars.zip App Application. 3jars-revo.gif Gif Revo screen shot.  Series 5  Series 5mx  Series 7  netBook  Geofox  Osaris  Revo