Which president from Group B can be added to Group A? Why?
Group A: William Harrison, Zachary Taylor, James Garfield, John Kennedy
Group B: Thomas Jefferson, Abraham Lincoln, Ulysses Grant, Warren Harding, Franklin Roosevelt, Jimmy Carter
The presidents in Group A died during their first term in office. Warren Harding can be added to Group A. Although Lincoln and Roosevelt also died in office, it was during their second and fourth terms, respectively.
Today's brain teaser courtesy of Braingle.com.