you mean UMS maps or all the sc1 and sc1bw maps that already exists? One map that i like is called Sherwood or something.
i would suggest crystals rpg, heaven bound, a modified version of ai firebat d where you dont win if you are the last player, a modified version of defense f where you dont win if you are the last player.
-|LT|- I suggest you get this: http://www.starcraft2forum.org/forums/index.php?action=tpmod;dl=item24 I hosted this a while ago.. I know not all of them are playable offline, but at least the first Puzzle Adventure is.. and I bet it will provide you at least a 20-30 minutes of fun... Good luck.