1. leader of Soviet Union who succeeded Stalin   Ayatollah Ruhollah Khomeini   Leonid Ilich Brezhnev   Nikita Sergeyevich Khrushchev   Henry Kissinger   Hint Half-n-half Clue   2. thirty-ninth President of United States of America   Leonid Ilich Brezhnev   Mao Tse-Tung   Jimmy Carter   Henry Kissinger   Half-n-half Clue   3. Foreign-Policy Advisor of United States of America   Fidel Castro   Henry Kissinger   Mikhail Gorbachev   Ronald Reagan   Half-n-half Clue   4. President of Soviet Union who ended Cold War   Mao Tse-Tung   Leonid Ilich Brezhnev   Henry Kissinger   Mikhail Gorbachev   Half-n-half Clue   5. President of Cuban Republic   Desmond Tutu   Frederik Willem de Klerk   Nelson Mandela   Fidel Castro   Half-n-half Clue   6. thirty-fifth President of United States of America   John F. Kennedy   Ronald Reagan   Ayatollah Ruhollah Khomeini   Henry Kissinger   Half-n-half Clue   7. President of South Africa who won the 1993 Nobel Peace Prize, which he shared with Nelson Mandela   Nelson Mandela   Frederik Willem de Klerk   Fidel Castro   Ronald Reagan   Half-n-half Clue