Choose analogous pair - Surgeon : Scalpel

C. SCULPTOR : CHISEL

If QOSCFLBJO is the code for PORCELAIN, which word is coded as BKMOUSPP ?

B. ALLOTROPY

Choose or find odd word - Mercury , Acetone , Petrol , Kerosene

A. MERCURY

In following questions, one term in number series is incorrect. - Find out the incorrect number 121, 143, 165, 186, 209

C. 186

Choose analogous pair - Question : Question Mark

B. ASIDE : PARENTHESES