Yes, there are many. There are 37 rivers and 21 lakes in Tasmania. This is probably only the main ones.
lakes and rivers
no
No.
Ladafi
Yes
Looking in Google Earth, I see a number of rivers. I do not see any natural lakes, but there are several reservoirs, artificial lakes created by damming the rivers.
yes there are.
YES
Yes
Danube or Váh.
Yes, several.
Missouri