Choose or find odd letter group - ABBC , PQQR , HIIJ , WYYZ , KLLM

D. WYYZ

Choose or find odd word - Nephrology , Etomology , Astrology , Mycology , Pathology

C. ASTROLOGY

Choose or find odd word - Apple , Mango , Watermelon , Guava

C. WATERMELON

Choose or find odd letter group - QNP , URT , YVX , EDB , IFH

D. EDB

Choose or find odd number pair - (43 - 6) , (28 - 4) , (50 - 7) , (36 - 5)

B. 28 - 4