TASK DEFINITION: You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For consistency, answers should be in all lower cased letters.
PROBLEM: Category: STAND BY YOUR MANNEQUIN 
Clue: In a magazine called The Show Window, this Oz creator dispensed advice on mannequins & creative display

SOLUTION: l. frank baum

PROBLEM: Category: GOING WIRELESS 
Clue: Thanks to firms like Pegaso & Telemex, this country now has more cellular users than fixed line customers

SOLUTION: mexico

PROBLEM: Category: CELEBRITY BOOKS 
Clue: In 1996 this comedian celebrated his 100th birthday with "100 Years: 100 Stories"

SOLUTION:
george burns