The discussion revolves around various number and thinking games that can be played without the need for pen and paper, ideal for passing time during boredom. Participants share personal strategies, such as doing mental math problems, which serve as a form of meditation during uncomfortable situations like dental visits. One user describes a unique method of measuring objects using their foot as a mental ruler, while another suggests a game called "sevens," where players count and clap for multiples of seven. Additionally, a riddle about a man using an elevator prompts a series of yes/no questions to deduce the answer, showcasing the enjoyment of interactive thinking games. Overall, the conversation highlights creative ways to engage the mind and alleviate boredom through simple, accessible games.