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Phineas and Ferb - Season 3 Episode 8 : Ask a Foolish Question (2025)

Trailer

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.

Networks:Disney XD, Disney Channel

Genre: Animation, Comedy, Family, Sci-Fi & Fantasy

Casts: Vincent Martella, David Errigo Jr., Ashley Tisdale, Caroline Rhea, Dee Bradley Baker, Alyson Stoner, Dan Povenmire, Jeff 'Swampy' Marsh

Last Air Date: Jul 26, 2025

Quality: HD

IMDb: 7.9 (931 Vote)

Release: Jan 01, 1970

View: 931

CAST

Phineas Flynn (voice)Vincent Martella

Ferb Fletcher (voice)David Errigo Jr.

Candace Flynn (voice)Ashley Tisdale

Linda Flynn-Fletcher (voice)Caroline Rhea

Perry the Platypus (voice)Dee Bradley Baker

Isabella Garcia-Shapiro (voice)Alyson Stoner

Heinz Doofenshmirtz (voice)Dan Povenmire

Francis Monogram (voice)Jeff 'Swampy' Marsh

#Tags:

Season List

Watch Phineas and Ferb - Season 3 Episode 8 : Ask a Foolish Question (2025)

The Great Indoors

Canderemy

Run, Candace, Run

Last Train to Bustville

Phineas' Birthday Clip-o-Rama!

The Belly of the Beast

Moon Farm

Ask a Foolish Question

Misperceived Monotreme

Candace Disconnected

Magic Carpet Ride

Bad Hair Day

Meatloaf Surprise

Phineas and Ferb Interrupted

A Real Boy

Mommy Can You Hear Me?

Road Trip

Tour de Ferb

Skiddley Whiffers

My Fair Goalie

Bullseye!

That's the Spirit

The Curse of Candace

Escape From Phineas Tower

Lotsa Latkes

Ferb Latin

A Phineas and Ferb Family Christmas

Tri-Stone Area

Doof Dynasty

Excaliferb

Phineas and Ferb and the Temple of Juatchadoon

Monster from the Id

Gi-Ants

The Remains of the Platypus

Mom's In The House

Perry the Actorpus

Let's Bounce

Bully Bromance Break Up

Quietest Day Ever

The Doonkelberry Imperative

Meapless in Seattle

Delivery of Destiny

Buford Confidential

The Mom Attractor

Cranius Maximus

Agent Doof

Minor Monogram

What A Croc!

Sleepwalk Surprise

Sci-Fi Pie Fly

Sipping with the Enemy

Tri-State Treasure: Boot of Secrets

Doofapus

Norm Unleashed

Where's Perry (1)

Where's Perry (2)

Ferb TV

When Worlds Collide

What'd I Miss?

Road to Danville

This is Your Backstory

Blackout

full movie, full episode

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Phineas and Ferb - Season 3 Episode 8 : Ask a Foolish Question (2025)