| Trivia | Answer | Episode Name |
| What breed of cat does a dejected Leonard consider buying because of its hypoallergenic properties? | |
| What is the name of the woman that Raj's parents try to set him up with? | |
| What musical do Leonard and Sheldon have on special edition DVD? | |
| What is Leonard's last name? | |
| What drink does Penny make for Leonard when practising mixing drinks? | |
| What are the first words that Raj says to Penny? | |
| Which two doctors does Sheldon postulate might be able to remove shoes from rear ends? | |
| According to his mother, where does Sheldon get 'all that science stuff' from? | |
| What does Sheldon say to Leonard when they are cleaning Penny's apartment and Leonard stands exasperatedly against the doorjamb? | |
| What type of laser does Leslie use to heat up her Cup o' Noodles? | |