"Numb and Number" is the twentieth episode of the second season of Disney Channel's That's So Raven and the forty-first episode overall. It aired on September 10, 2004. It was written by Michael Feldman & Dava Savel and directed by Rondell Sheridan.
Cory has to go to the dentist. He is terrified, so Raven goes with him to calm his fears. When they get there, Raven sits in the dentist's chair to show Cory that there is nothing to be scared of - until the dentist (Tom Virtue) tells her that she has a cavity. Suddenly scared, the two of them try to run, ending up with Raven posing as "Dr. Thinkenfast" ("Thinking fast"), and Cory as "Dr. Doasisay" ("Do as I say"). Meanwhile, Victor; Chelsea; and Eddie are working on a Chill Grill advertisement video, but struggle over creative control.
- The title of this episode is a parody of the 1994 film Dumb and Dumber.
- Raven-Symoné as Raven Baxter
- Orlando Brown as Eddie Thomas
- Kyle Massey as Cory Baxter
- Anneliese van der Pol as Chelsea Daniels
- T'Keyah Crystal Keymáh as Tanya Baxter (absent)
- Rondell Sheridan as Victor Baxter