Question: which one among the following rivers is the longest?
Answer: Nile River: The longest river in the world. Nile River: the longest river in the world (Image: 10mosttoday) ... 
Amazon River: Second longest and the largest by water flow. Amazon River (Image: 10mosttoday) ... 
Yangtze River: The longest river in Asia. ... 
Mississippi-Missouri. ... 
Yenisei.