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: SIGNS & SYMBOLS 
Clue: The official insignia of this profession includes a serpent on a staff, a Greek delta & 32 leaves

SOLUTION: dentistry

PROBLEM: Category: MONARCHIES 
Clue: 1 of the 2 largely German-speaking monarchies in the world; they're about 250 miles apart

SOLUTION: liechtenstein & luxembourg

PROBLEM: Category: BUSY PRESIDENTS 
Clue: He had previously been a U.S. senator, minister to France, England & Spain, Secretary of War, Secretary of State & Governor of Virginia

SOLUTION:
james monroe