Answers to the POTUS Quiz

Here are the answers to the POTUS Quiz:

1. James (6)
2. Benjamin Harrison (see Question 4)
3. Andrew (Jackson and Johnson, from Tennessee)
4. Grover Cleveland, two non-consecutive terms (see Question 2)
5. William Henry Harrison
6. Franklin Delano Roosevelt
7. John Adams & John Quincy Adams, George H. W. Bush & George W. Bush
8. Wm. Henry Harrison & Benjamin Harrison
9. Andrew Johnson and Lyndon Baines Johnson
10. Woodrow Wilson (Princeton) and Dwight D. Eisenhower (Columbia)
11. Thomas Jefferson and John Quincy Adams
12. Richard Milhous Nixon
13. Gerald Rudolph Ford
14. Polk, Taft, Ford, Bush, Bush
15. Washington, Eisenhower (10 letters each)
16. James Buchanan
17. John Adams
18. George Washington
19. Jomes Monroe (Monrovia, Liberia)
20. Calvin Coolidge