Choose or find odd word - Epicentre , Seismology , Focus , Crater , Richter Scale

D. CRATER

Choose or find odd word - Calendar , Year , Date , Month , Day

A. CALENDAR

Choose or find odd number pair - (1 - 0) , (3 - 8) , (6 - 35) , (7 - 50)

D. 7 - 50

Choose or find odd letter group - AE , AI , IO , EI , OU

B. AI

Choose or find odd letter group - ADGJ , PSVY , LORU , ILMP , FILO

D. ILMP