Choose or find odd number pair - (72 - 45) , (51 - 24) , (46 - 20) , (32 - 13)

D. 32 - 13

Choose or find odd word - Ranthamboor , Sunderban , Kaziranga , Ghana , Corundum

E. CORUNDUM

Choose or find odd pair of words - (Solder : Tin) , (Haematite : Iron) , (Bauxite : Aluminium) , (Malachite : Copper)

A. SOLDER : TIN

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

B. AZY

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

A. 10 - 20