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

A. PAINTER

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

E. NIAGARA

Choose or find odd word - Asia , Argentina , Africa , Australia , Antarctia

B. ARGENTINA

Choose or find odd pair of words - (Oil : Lamp) , (Water : Tap) , (Oxygen : Life) , (Power : Machine)

B. WATER : TAP

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

A. HQU