there are 3 jars of different sizes.one jar holds 8 litres of milk,the other 2 jars of 5 litres and 3 jars are empty.There is no measuring level or marks in all the jars.Juggle between these 3 jars and get 2 jars containing 4litres each at the end.
Jars : 8 5 3 Milk: 8 0 0 (initially) ------------------------ 5 3 0 2 5 1 7 1 0 4 4 0 DONE