1. Belgrade   Zaire (Congo) Zaire Congo   Ottawa, St. Lawrence Ottawa St. Lawrence Outaouais   Danube, Sava Danube Sava   Danube   Hint Half-n-half Clue   2. Washington D.C.   Seine   Hudson   Danube, Sava Danube Sava   Potomac   Half-n-half Clue   3. Kinshasa   Seine   Hudson   Nile Nile Blue Nile   Zaire (Congo) Zaire Congo   Half-n-half Clue   4. Montreal   Ottawa, St. Lawrence Ottawa St. Lawrence Outaouais   Hudson   Yangtze Kiang Yangtse Kiang Yangtze Yangtse Chang Jiang   Zaire (Congo) Zaire Congo   Half-n-half Clue   5. Bern   Yangtze Kiang Yangtse Kiang Yangtze Yangtse Chang Jiang   Rhine Rhein   Thames   Aare   Half-n-half Clue   6. Berlin   Aare   Rhine Rhein   Tiber Tiber Tevere   Spree   Half-n-half Clue   7. Nanking   Aare   Tagus Tagus Tejo   Yangtze Kiang Yangtse Kiang Yangtze Yangtse Chang Jiang   Spree   Half-n-half Clue