Choose or find odd number pair - (10 - 20) , (30 - 40) , (40 - 50) , (50 - 60)

A. 10 - 20

Choose or find odd letter group - PQO , AZY , TWS , VBU , EXD

B. AZY

Choose or find odd word - Pen , Calculator , Pencil , Ink

D. INK

Choose or find odd number pair - (42 - 4), (36 - 6), (32 - 2), (15 - 5)

A. 42 - 4

Choose or find odd letter group - POCG, KLIZ, BUDX, FQMV, ARTG

D. FQMV