A Beautiful Freddy (S02E30)

When Freddy is struck by lightning, he suddenly becomes an intellectual powerhouse, brimming with knowledge. His friends decide to enter him in a trivia competition to win a million dollars. However, they soon discover that Freddy's newfound intelligence is short-lived, and he reverts to his former self after a while. In a bid to keep him smart, the animals devise an electrical system that shocks Freddy to boost his brainpower. Yet, each time a question is asked, he loses his intelligence again. Frustrated, Freddy zaps himself backstage and dreams of meeting Albert Einstein, who unfortunately gives him the wrong answer to the final question, leading Freddy to curse the famous physicist for their loss.