<PRE><B>Question 147688</B>
using one 20 0z cup; fill the 14 oz cup, leaving 6 oz 


pour the 6 oz into the 8 oz cup; leaving the 20 oz cup empty


then fill the 8 oz cup from the remaining 20 oz cup, leaving 18 oz in the 20 oz cup


pour the 8 oz cup into the empty 20 oz cup


fill the 8 oz cup from the 14 oz cup, leaving 6 oz in the 14 oz cup


using the 8 oz cup, fill the 20 oz cup that already contains 18 oz; this leaves 6 oz in the 8 oz cup</PRE>