Find me on body builders or in the drink aisle. I am 142 6357.

(a) Warm up:
What is represented by 16457  31645?

Each of the answers to the queries in parts (b) and (c) pertain to the capital city of a U.N. member country. The original digit to letter assignment remains unaltered in both the parts.

(b) Tougher:
Which capital city is represented by 89014*74?

(c) Still more tough:
Which capital city is represented by:
(i) **3*41*3*3?
(ii) 31**54**?

Note: Each asterisk(*) represents a letter, whether same or different.