Daily Dare Challenge is Crisis Courier. To beat Chadley you need a score of 4,000 points and to beat Abigail you need a score of 1,200 points. Today's score to beat for AAA is 10,000 (Click the morse code under the challenger score to see this. Note: You need to first pick Chadley or Abigail to see it.).
prize for beating Chadley is Altador From Above (Book). The
prize for beating Abigail is Golden Winged Apple (Gift). The
bonus prize for beating Chadley or Abigail on the day the challenge is
released is Airborne Minitheus (Altadorian Petpets).