1. 1992 Summer Olympics   Barcelona   Seoul   Mexico City   Berlin   Hint Half-n-half Clue   2. 1964 Summer Olympics   Amsterdam   Melbourne   Tokyo   Stockholm   Half-n-half Clue   3. 1900 Summer Olympics   Los Angeles   Athens   Montreal   Paris   Half-n-half Clue   4. 1952 Summer Olympics   London   Antwerp   Barcelona   Helsinki   Half-n-half Clue   5. 1984 Summer Olympics   Athens   Barcelona   Los Angeles   Sydney   Half-n-half Clue   6. 1988 Summer Olympics   Paris   Mexico City   Seoul   St. Louis   Half-n-half Clue   7. 1960 Summer Olympics   Sydney   Rome   Athens   St. Louis   Half-n-half Clue