Pouring Water

Three Jars contain 19,13 abd 7 liters respectively. The first is empty and the others are full. None of the vessels is graduated. How can one measure out 10 liters, using no other vessels, by pouring fluid from one into another?

Solution:

17  13    7
--  --   --
00 - 13 - 7
07 - 13 - 0
19 - 01 - 0
12 - 01 - 7
12 - 08 - 0
05 - 08 - 7
05 - 13 - 2
18 - 00 - 2
18 - 02 - 0
11 - 02 - 7
11 - 09 - 0
04 - 09 - 7
04 - 13 - 3
17 - 00 - 3
17 - 03 - 0
10 - 03 - 7