1. 1980 Summer Olympics   Berlin   Tokyo   Paris   Moscow   Hint Half-n-half Clue   2. 1968 Summer Olympics   Paris   Montreal   Mexico City   Stockholm   Half-n-half Clue   3. 1904 Summer Olympics   Atlanta   St. Louis   Los Angeles   Montreal   Half-n-half Clue   4. 1952 Summer Olympics   Tokyo   Seoul   Helsinki   Munich   Half-n-half Clue   5. 1912 Summer Olympics   Moscow   Paris   Stockholm   London   Half-n-half Clue   6. 2008 Summer Olympics   Munich   Antwerp   Rome   Beijing   Half-n-half Clue   7. 2012 Summer Olympics   Montreal   Seoul   London   Sydney   Half-n-half Clue