1. 1952 Summer Olympics   Helsinki   Seoul   Beijing   London   Hint Half-n-half Clue   2. 1924 Summer Olympics   Paris   Melbourne   Atlanta   Athens   Half-n-half Clue   3. 1916 Summer Olympics   Sydney   Paris   Los Angeles   Berlin   Half-n-half Clue   4. 1948 Summer Olympics   Amsterdam   Tokyo   Athens   London   Half-n-half Clue   5. 1996 Summer Olympics   St. Louis   Tokyo   Moscow   Atlanta   Half-n-half Clue   6. 1980 Summer Olympics   Melbourne   Moscow   Sydney   Tokyo   Half-n-half Clue   7. 1908 Summer Olympics   Berlin   Antwerp   Moscow   London   Half-n-half Clue