Pokemon Season 1 Episode 58 - Riddle Me This

⁣Heading to Cinnabar Island, Ash is dismayed to find the Gym gone from
the Island. Desperate for his 7th badge, Ash goes around and meets a
riddle master who tells him that the Gym had moved. Then, they realize
the riddle master is actually Blaine, the Gym Leader. Then, Ash begins
his battle against Blaine.