Season
Season 5 Episode
- Season 3 The Great Indoors
- Season 3 Canderemy
- Season 3 Run, Candace, Run
- Season 3 Last Train to Bustville
- Season 3 Phineas' Birthday Clip-o-Rama!
- Season 3 The Belly of the Beast
- Season 3 Moon Farm
- Season 3 Ask a Foolish Question
- Season 3 Misperceived Monotreme
- Season 3 Candace Disconnected
- Season 3 Magic Carpet Ride
- Season 3 Bad Hair Day
- Season 3 Meatloaf Surprise
- Season 3 Phineas and Ferb Interrupted
- Season 3 A Real Boy
- Season 3 Mommy Can You Hear Me?
- Season 3 Road Trip
- Season 3 Tour de Ferb
- Season 3 Skiddley Whiffers
- Season 3 My Fair Goalie
- Season 3 Bullseye!
- Season 3 That's the Spirit
- Season 3 The Curse of Candace
- Season 3 Escape From Phineas Tower
- Season 3 Lotsa Latkes
- Season 3 Ferb Latin
- Season 3 A Phineas and Ferb Family Christmas
- Season 3 Tri-Stone Area
- Season 3 Doof Dynasty
- Season 3 Excaliferb
- Season 3 Phineas and Ferb and the Temple of Juatchadoon
- Season 3 Monster from the Id
- Season 3 Gi-Ants
- Season 3 The Remains of the Platypus
- Season 3 Mom's In The House
- Season 3 Perry the Actorpus
- Season 3 Let's Bounce
- Season 3 Bully Bromance Break Up
- Season 3 Quietest Day Ever
- Season 3 The Doonkelberry Imperative
- Season 3 Meapless in Seattle
- Season 3 Delivery of Destiny
- Season 3 Buford Confidential
- Season 3 The Mom Attractor
- Season 3 Cranius Maximus
- Season 3 Agent Doof
- Season 3 Minor Monogram
- Season 3 What A Croc!
- Season 3 Sleepwalk Surprise
- Season 3 Sci-Fi Pie Fly
- Season 3 Sipping with the Enemy
- Season 3 Tri-State Treasure: Boot of Secrets
- Season 3 Doofapus
- Season 3 Norm Unleashed
- Season 3 Where's Perry (1)
- Season 3 Where's Perry (2)
- Season 3 Ferb TV
- Season 3 When Worlds Collide
- Season 3 What'd I Miss?
- Season 3 Road to Danville
- Season 3 This is Your Backstory
- Season 3 Blackout
Phineas and Ferb - Season 3 Episode 8 Ask a Foolish Question
7.90 48 minutes When Candace discovers that Phineas and Ferb have invented a computer that can answer anything, she asks it how she can finally bust her brothers once and for all. Meanwhile, Dr. Doofenshmirtz loses the key to his latest invention, the "All Purpose-inator," and Agent P must find it before he does.
