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

D. EXPERIMENT

Choose or find odd pair of words - (China : Beijing), (Russia : Moscow), (Japan : Singapore), (Spain : Madrid)

C. JAPAN : SINGAPORE

Choose or find odd number - 48, 12, 36, 24, 59

E. 59

Choose or find odd word - Ramayana , Mahabharata , Upnishad , Panchatantra

D. PANCHATANTRA

Choose or find odd pair of words - (Proteins : Marasmus) , (Sodium : Rickets) , (Iodine : Goitre) , (Iron : Anaemia)

B. SODIUM : RICKETS