A. The odd one out is the Himalayas. The Amazon, the Nile, and the Orinoco are rivers, while the Himalayas are a mountain range.
B. The odd one out is Tibet. Ontario, Huron, Erie, and Michigan are the names of great lakes.
C. The odd one out is Cow. Koala bear, cobra, panda, giraffe are the names of the animals.
D. The odd one out is Minsk. Paris, Krakow, New York, and Berlin are the capitals and big cities.
E. The odd one out is the Dnieper. The Alps, the Andes, the Urals are mountains.