Choose or find odd letter group - PRVX , MQTV , DHKM , BFIK

A. PRVX

Choose or find odd letter group - BdE , XpD , HQu , MkV , PtZ

A. HQU

Choose or find odd word - King , Queen , Bishop , Minister , Knight

D. MINISTER

Choose or find odd word - Volga , nile , Amazon , Congo , Niagara

E. NIAGARA

Choose or find odd word - Painter , Canvas , Brush , Colour , Palette

A. PAINTER