1. 1904 Summer Olympics   St. Louis   Sydney   Melbourne   Montreal   Hint Half-n-half Clue   2. 1936 Summer Olympics   Los Angeles   Berlin   Amsterdam   Melbourne   Half-n-half Clue   3. 1956 Summer Olympics   Rome   Paris   Melbourne   Seoul   Half-n-half Clue   4. 2004 Summer Olympics   Mexico City   London   Berlin   Athens   Half-n-half Clue   5. 1988 Summer Olympics   Atlanta   Seoul   Moscow   London   Half-n-half Clue   6. 1944 Summer Olympics   London   Moscow   St. Louis   Tokyo   Half-n-half Clue   7. 1948 Summer Olympics   London   Tokyo   Los Angeles   Athens   Half-n-half Clue