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 simplicity, answers should be in all lower cased letters.
PROBLEM: Category: U.S. PRESIDENTS 
Clue: Adventurous 26th president, he was 1st to ride in an automobile & an airplane

SOLUTION: theodore roosevelt

PROBLEM: Category: AFRICA 
Clue: Its Declaration of Independence was signed in 1847 by 11 men in that nation's Providence Baptist Church

SOLUTION: liberia

PROBLEM: Category: ACTOR-DIRECTORS 
Clue: This 1990 winner is the most recent to win the Best Director Oscar for his directorial debut

SOLUTION:
kevin costner