Choose or find odd word - Hypothesis , Assumption , Observation , Experiment

D. EXPERIMENT

Choose or find odd number pair - (3 - 5) , (5 - 3) , (6 - 2) , (7 - 3)

D. 7 - 3

Choose or find odd number - 324 , 244 , 136 , 352 , 514

A. 324

Choose or find odd letter group - VT , MQ , PR , DF , FG

E. FG

Choose or find odd word - Pupil , Iris , Cornea , Medulla , Retina

D. MEDULLA