The Brainiacs (2015)
Original title: 문제적 남자
The Brainiacs is a 2015 Korean-language talk series created by Park Hyun-joo. It stars Lee Jang-won, Jeon Hyun-moo and Ha Seok-jin.
Traditionally, the cast is given clues to guess the identity of the episode's guests, and once the guests appear and are introduced, they and the cast are given a set of puzzles to solve.