Taarak Mehta Ka Ooltah Chashmah S01 E2829 The Unknown Gift

"Problems Toh Hain Sabke Saath, Bas Nazariye Ki Hain Baat!"

Everybody in Gokuldham receives a letter where it is written about some puzzle and the prize related to it. After that, everybody rushes to Taarak's house to find the solution but he is almost ready for the office, and he promises to solve it later.