Where was Mrs. Quest? Was she dead? Did it involve an experiment gone wrong?
What was Hadji? Adopted? A foreign exchange intern?
What about Dr. Quest and Roger “Race” Bannon? Any latent homosexuality there, or was the good doctor too immersed in his work?
(Wasn’t the one with the big robotic spider cool?)
Come on guys! Scooby Doo is sooo easy to figure out!
Scrappy was the love-child of Velma and Scooby. Didn’t you know they were into beastiality?
Sure, Fred and Daphne were bumpin’ uglies. I personally never understood why he always wore that lame-ass scarf.
Shaggy was obviously homosexual. Duh.
Now, some questions:
How come Fred’s hands are so flippin HUGE in alot of scenes? What are the animators trying to tell us, exactly?
How did the gang get the Mystery Machine to China that one time?
Why were Velma and Fred able to read minds? Did Fred ever say, “I know what you’re thinking, Velma,” but turn out to be wrong? If so, why didn’t he ever say anything?
Why did Mama Cass have to own a freaking candy factory? I know she was fat, but please.
Was the scientist in the Batman and Robin episode supposed to Albert Einstein? He looks just like him.
In the Electric-Sizzle Monster episode (as the ski resort), how come the electric charge doesn’t travel via the snow (wet matter) and electricute everyone? How did he fit in that file cabinet?
Why was Dick Van Dyke the only person working at the abandoned carnival?
What does the song Davy Jones sings during the big chase scene in his special episode have to do with anything? “Happy is a secret word, but maybe it’ll get us through. I love you, you know it’s true, and I can make you happy if you love me too!” Huh?
In the Wax Monster episode, why don’t Scooby and Shaggy die when they get covered in wax? How could they breathe?
In that one episode, how come the bad guy was wearing like four hundred masks and no one noticed his skin was kind of plasticy?
What was with “Helga” in the Dr. Jekyl & Mr. Hyde episode? She’s a little butch.
How come we only ever got to see Shaggy and Scooby’s families? The rest were orphans. All we got was an occasional aunt or uncle.
Two more, non Scooby-related:
What was up with Inspector Gadget and his “niece”? I always thought something was up with that, and Penny’s yippy little pet knew allll about it. And Dr. MAD? How’d he lose his arm?
At the end of every episode, when a bad guy is revealed, (shock! surprise! someone unexpected from earlier in the show!) why do these people then go into an unprovoked rant of confession?
Haven’t they ever heard of keeping their mouth shut and waiting for their lawyer? Were these ghoul-wannabes properly Mirandized?
Did anybody ever buy that gorilla in the window?
Was Betty Boop ever arrested? I mean, what with all that bootlegging and prostitution going on.
Did Frank Sinatra, Bob Hope, Carmen Miranda and all those other actors charicatured in thos old WB cartoon give permission?
That’s Dr. Claw, you ninny. Jeez, for all the dope you got on cartoons, this shoulda been an easy one to get. 
As for Jughead and Wimpy, I go with Wimpy. Jughead may have Superman’s metabolism, but Wimpy would be able to finagle a couple of burgers from Jughead’s supply, thereby ensuring his victory in an eating contest.
And the reverse, as we all know, is Sir MIX-a-Lot
Wonderwoman got back!
Come on, have you ever seen them in the same place?
Oops, I am a ninny. 
Milossarian–
(1) It was revealed in “Jonny’s Golden Adventure” (1993) that Mrs. Quest was killed by the evil Dr. Zin. Jonny resented Dr. Quest for not trying harder to save Mom. Of course, in the original series, Mom Quest was never mentioned.
(2) Hadji was an orphan kid living on the streets of India who saved Dr. Quest’s life (I think a snake was about to bite him). Since he had no home or family, Dr. Quest quasi-adopted him.
(3) Maybe, but in the aforementioned JGA, Race discovered that he had an illigetimate daughter, Jessie, with secret agent Jade Kenyon. Jessie is in the “New Adventures of Jonny Quest.”
Is it true what they say about Nell Fenwick and Dudley Dooright’s horse (Horse, by name)? What happened to Mrs. Fenwick? We know all about her dad and the other Mounties in the barracks after lights out.
Did Professor Peabody ever want to leave Sherman in some other time (“Every dog should have a boy.”)
Were the coyote from the RR episodes and the Wiley Coyote-Super Genius coyote the same canine?
Why didn’t Sylvester see someone about that speech impediment. Imagine the terrible taunting he no doubt had to endure as a kitten.
Was the jeep housebroken or did he piss all over Popeye’s rugs? Who was Popeye’s brother/sister - he had nephews (Pipeye, Poopeye, and anther one who I forget)?
Ah, a mispent youth…
You missed two nephews. Pepeye and Pupeye. Of course, Pupeye had behavioral problems and wasn’t featured in as many cartoons as the other “nephews”. Rumor has it that he later developed substance abuse problems, probably related to his father, Popeye, never publicly acknowledging him as his son. There was a book deal in the works, but the publisher foolishly advanced him a large sum of money, wherupon he emigrated to Brazil and went on the drinking binge that tragically led to his early demise.
Pity.
Pepeye, on the other hand, went on to become a power in the Los Angeles real estate business, and has retired to his ranch in Montana.
~~Baloo
Fill in your own joke referring to “In The Navy” by the Village People 
When some cartoons come on, the seasoned viewer can expect:
…Casper will inadvertently scare innocent people, but will befriend some hapless character by scaring the hell out of a villain or predator (for example, when a bear stranded a small pack of Boy Scouts–and the Scoutmaster!–on a limb on a cliff, until Casper came along and scared the bear away).
…Baby Huey will screw up the other ducklings’ play; a wolf or other predator will drool over his next prospective meal–the ducklings–until he sees Huey, who will literally squash the predator’s plans.
…Wile E. Coyote (yes, the same character who passes himself off to Bugs Bunny as “Super Genius”) will do his damndest to try to catch the Road Runner, who remains unscathed by dint of Acme Corporation’s faulty products and the unexpected suspension of various laws of physics (the Road Runner even holds up a sign, “Sure–but I never studied law!”).
…Pepe le Pew–whose own sense of smell must have deserted him, or he would know better–will mistake a black cat accidentally streaked with white paint for a female skunk (the fact that the cat is somehow mute doesn’t help) and inevitably mistakes the cat’s desperate efforts to escape him for ‘playing hard-to-get,’ or something. (Can’t he tell the scent of a female skunk from the stench of house paint?)
…Sylvester will be unable to convince his son (“my father is a liar!” the kid moans) that the creature who has battered him is in fact quite large (Hippity Hopper, a baby kangaroo); unfortunately–and this must be what the story line hinges on–the kid only sees a normal size mouse.
…and when Sylvester is paired with Porky, he turns mute and Porky seems blinded–almost literally–while Sylvester is pushed by sheer terror to the limit of his nine lives. (Usually Porky doesn’t catch on.)
One of the threads running through the Archie comics for as long as I can remember, is Moose’s insane violence if he even thinks some guy, usually Reggie, is “making time with muh gurrl Midge.” This must be done larger-than-life, because if the otherwise-imperceptive Moose can sniff an interloper out with such acuity he must also have some awareness that Reggie’s parents might have him locked up in juvenile hall (or an insane asylum) or sue the Masons blind. In any case I wonder why 1) Reggie hasn’t moved away; and 2) Why Midge is always passive and silent instead of upbraiding Moose for such insane violence. This has mystified me for more than 40 years.
C’mon, Midge LIKES it when Moose goes into bonecrusher mode. Midge is a patented weirdo anyway; can YOU imagine what it must be like to be clasped in those enormous Moose arms?
Considering how carried away with fury he becomes when Reggie’s around Midge, can you imagine what it must be like to be clasped in those enormous Moose arms in the backseat of his car up on Lookout Point when he’s carried away by passion?
Brrrrrrrr…
No, but I guess Midge can…
But I swear…the girls, like Betty, Veronica, Nancy, Sabrina, and Midge, are drawn so sexy they must really turn Archie and the others on… oh well, Reggie’s persona craves danger anyway…
How come, if He-Man and She-Ra were twins, (or rather, Prince Adam and Princess Adora), he visited her show all the time, but she never visited his show?
How come on Scooby Do everyone was so scared of the “monster”, when it ALWAYS turned out to be some guy in a costume? Wouldn’t they guess that it would be the same as last time?
So I’m not the only one who wondered about this.
The only thing I could ever figure out was that He-Man was already in reruns when She-Ra went on the air. But there was a Christmas special crossover one year (maybe it was a short movie; it was a long time ago) with the characters from both shows.
About all of the Scooby-Doo ?'s:
**3. Why were Velma and Fred able to read minds? Did Fred ever say, “I know what you’re thinking, Velma,” but turn out to be wrong? If so, why didn’t he ever say anything? **
I wondered about this myself. Fred must share some kind of psychic bond with Velma.
**11. What was with “Helga” in the Dr. Jekyl & Mr. Hyde episode? She’s a little butch. ** What about Helga? Sure, she won’t win any Miss America contests, but she wsn’t a bad guy.
**12. How come we only ever got to see Shaggy and Scooby’s families? The rest were orphans. All we got was an occasional aunt or uncle. **
I think Daphne was from a pretty wealthy family. A Pup Named Scooby Doo had a few episodes with Daphne’s family. They lived in a mansion and had a chaufer-driven limo.
Incidentally, in one of the specials Shaggy has a girlfriend. It was the one where Shaggy gets turned into a werewolf and has to run a car race against a bunch of monsters to get the cure.
Why does Dilbert need to have freaks, like the new guy with a hand coming out of his head?
Isn’t it bad enough with talking rats and cats?
How does this help his forte of office humor?
Taking things in another direction, this is not so much a question about a cartoon as a question about the people who watch it.
Popeye is portrayed as some kind of hero. Yet, he solves all his problems by beating the piss out of people. Why hasn’t some Parents for Moral TV group seized on that? Is it just because TV stations don’t show much Popeye anymore?