Choose or find odd letter group - PUT , END , OWL , ARM

A. PUT

Choose or find odd word - Piano , Typewriter , Computer , Calculator

A. PIANO

Choose or find odd word - Tarapur , Kota , Kalpakkam , Paradeep , Narora

D. PARADEEP

Choose or find odd word - Ant , Bee , Moth , Midge , Spider

E. SPIDER

Choose or find odd number pair - (45 - 27) , (30 - 18) , (20 - 10) , (15 - 12)

C. 20 - 10