1. Berlin   Danube   Nile Nile Blue Nile   Zaire (Congo) Zaire Congo   Spree   Hint Half-n-half Clue   2. New York   Tagus Tagus Tejo   Hudson   Nile Nile Blue Nile   Yangtze Kiang Yangtse Kiang Yangtze Yangtse Chang Jiang   Half-n-half Clue   3. Kinshasa   Aare   Seine   Zaire (Congo) Zaire Congo   Nile Nile Blue Nile   Half-n-half Clue   4. Washington D.C.   Nile Nile Blue Nile   Potomac   Thames   Tagus Tagus Tejo   Half-n-half Clue   5. Vienna   Thames   Aare   Rhine Rhein   Danube   Half-n-half Clue   6. Cairo   Danube   Aare   Nile Nile Blue Nile   Tagus Tagus Tejo   Half-n-half Clue   7. Bern   Seine   Tagus Tagus Tejo   Yangtze Kiang Yangtse Kiang Yangtze Yangtse Chang Jiang   Aare   Half-n-half Clue