Perhaps some are better left unsolved.
Why do the Teenage Mutant Ninja Turtles need to wear masks over their eyes?
As if the key to identifying a giant anthropomorphic crime-fighting turtle is the eyes.
Source: rotpod.net
What happened to Shawn's sister Stacy? (Or Eric's Best Friend Jason?) (Or Morgan for Three Years?)
I like to think they went to Boy Meets World purgatory for a few years to atone with Minkus. [Minus Jason, who was busy being the voice of Max in 'A Goofy Movie']
Source: images4.fanpop.com
What mystery devil juice was Fruitopia, where did it come from, and who was buying it?
Sitting idly in middle school cafeterias from 1994-2001.
Source: vendingconcepts.net
Why did Ash Ketchum's mother allow her 10 year old child to roam the Japanese countryside fighting monsters?
Here's a photo of Delia Ketchum not winning "Mother of the Year" for the 10th straight time!
Source: http://25.media.tumblr.com/tumblr_lkwhjpgYky1qcamaso1_500.jpg