The first letters of the clues spell ALPHABETIZE BY CLUE. So, if you alphabetize the clues and answer them:
An even prime. 2. April date of Henry Ford's death 7 Birth year of Leo Tolstoy 1828 "Blink" follower 182 Connecticut's east-west primary Interstate 84 Ellen ran for this many seasons 5 Exactly seven and a half dozen 90 Ezekiel chapter whose end is read on Shabbat ha-Chodesh 45 Harvard calculus course being taught by Alberto De Sole 23 Iodine's atomic number 53 LX 60 Lyndon Johnson had this many secretaries of defense 2 "Pieces" of a Spanish coin 8 The jumbo jet 747 Unlucky Friday 13 Years remaining in Ken Salazar's first Senate term 5 Z, if A = 1 26
...the answers in this order constitute the first 32 digits of e. The answer to the puzzle is E.
2006 MIT Mystery Hunt