Which one of the following dam - river pairs is not correctly matched ?

Which one of the following pairs (River - Direction) is not correctly matched ?

Which one of the following is not correctly matched (City - River)?

Which one of the following is not correctly matched (City - River)?

Which of the following capitals is not situated on the banks of Danube river?

Which of the following pairs (River - City) are correctly matched? 1. Danube – Belgrade 2. Loire – Lyon 3. Rhine – Frankfurt 4. Vistula – Warsaw