Here are the premises for episodes 6-8 of Scooby-Doo and Guess Who, oddly found by just Googling the episode numbers. Thanks so much to The Cop for letting me know about this!
The Scooby of a Thousand Faces!
When a marble statue comes to life at a Greek museum, the gang becomes caught between a braying Minotaur and a sword-wielding Wonder Woman; teaming up with the Amazonian princess, the Mystery Inc. gang experiences a little rift of boys versus girls.
The Cursed Cabinet of Professor Madds Markson!
When the mystery-solving gang accepts an invitation to spend one night in the haunted Savannah Hotel in Las Vegas before its controlled demolition, they learn that magicians Penn & Teller have also accepted the challenge.
When Urkel-Bots Go Bad!
When Steve Urkel enlists the help of the gang to track down the Urkel-Bot, they stumble onto a deeper mystery with the appearance of a Technomancer who controls all the robots.