Choose or find odd number - 21 , 39 , 51 , 63 , 83

E. 83

Choose or find odd number - 5698 , 4321 , 7963 , 4232 , 8597

D. 4232

Choose or find odd pair of words - (Tongue : Taste) , (Eye : Blind) , (Ear : Deaf) , (Leg : Lame)

A. TONGUE : TASTE

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

A. SOLDER : TIN

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

D. 32 - 13