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

D. MEDULLA

Choose or find odd word - Inch , Foot , Yard , Quart , Metre

D. QUART

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

D. EXPERIMENT

Choose or find odd letter group - UTSR , IHGE , NMLK , ZYXW , SRQP

B. IHGE

Choose or find odd word - V.V. Giri , General Zia , General Ershad , Lal Bahadur Shastri

D. LAL BAHADUR SHASTRI