Choose or find odd pair of words - (Malaria : Protozoa) , (Yeast : Fungi) , (Typhoid : Bacteria) , (Polio : Virus)

B. YEAST : FUNGI

Choose or find odd word - Chair , Bench , Table , Stool

C. TABLE

Choose or find odd word - Arrow , Axe , Knife , Dagger , Sword

A. ARROW

Choose or find odd word - Thermometer , Hygrometer , Anemometer , Seismograph , Sphygmomanometer

E. SPHYGMOMANOMETER

Choose or find odd letter group - BCDE , PQRS , WXYZ , STUW , GHIJ

D. STUW