Yes, they are the same rivers. The Zaire River is sometimes called the Congo River, because part of it is in the Congo.
Zambezi River.
According to some scientists it is, but there is no confimation yet of this research.
Right Continent, wrong River, the Nile is the longest river. The Congo River is the second largest in Africa, and 8th overall in the World.
No
The World Longest Rivers
Kabila Inaugurated in Congo
Two Hundred Dead in Congo Explosions
Hundreds Dead in Congo Republic Blasts