70 Best Big Bang Theory Online Trivia Game Quiz Questions

Only a few television shows can capture the attention of their audience. The Big Bang Theory is a prime example. It’s an American sitcom that aired between 2007 to 2019. This show tells the story of a group of friends and their hilarious interaction with one another- which we all are a fan of!

So, whether you’re a casual viewer or a die-hard fan, we have prepared a trivia quiz to test your knowledge about the show’s details and comedic moments.

Let’s look into the trivia quizzes that will challenge your memory and make you nostalgic about some of the most iconic moments in the Big Bang theory. Answer the questions to learn how much you know about Sheldon, Leonard, Penny, and the rest of the gang!

70+ Big Bang Theory online trivia game quiz with answers

1. In what year did the show premiere?

   • Answer: 2007

2. Where is Penny working as a waitress at the start of the show?

   • Answer: The Cheesecake Factory

3. Which two characters first live together?

   • Answer: Sheldon and Leonard

4. What's the name of The Big Bang Theory's signature song?

   • Answer: The History of Everything

5. What is the name of Sheldon's superhero alter-ego?

   • Answer: The Flash

6. Which rock group Howards belongs to?

   • Answer: Footprints on the Moon

7. What is Sheldon's favorite television program?

   • Answer: Doctor Who

8. What type of scientist is Howard Wolowitz?

   • Answer: Aerospace engineer

9. Who is Penny's best friend?

   • Answer: Amy Farrah Fowler

10. What is the name of Sheldon's sister?

    • Answer: Missy Cooper

11. What is Sheldon's favorite number?

    • Answer: 73

12. What is Sheldon's IQ?

    • Answer: 187

13. What store was Sheldon born in?

    • Answer: Kmart

14. Where does Sheldon's twin sister work?

    • Answer: Fuddruckers

15. What instrument does Raj play?

    • Answer: Sitar

16. What is the name of Howard's girlfriend-turned-wife?

    • Answer: Bernadette Rostenkowski-Wolowitz

17. Who is Sheldon's favorite Star Trek character?

    • Answer: Spock

18. What is the name of the University attended by Sheldon and Leonard?

    • Answer: California Institute of Technology

19. Which character has a strong affinity for cats?

    • Answer: Penny

20. Why did Penny move to Los Angeles?

    • Answer: To become an actress

21. What's the name of the person that Penny moved into the flat down the hall from Sheldon after breaking up with her boyfriend?

    • Answer: Kurt

22. Which episode shows Raj ending his relationship with his girlfriend Lucy?

    • Answer: The Relationship Diremption

23. What's the title of the episode where the group plays the game "Dungeons & Dragons"?

    • Answer: The Love Car Displacement

24. What is Leonard's surname?

    • Answer: Hofstadter

25. Which person in the group has a job as an aerospace engineer?

    • Answer: Howard Wolowitz

26. Who acquired a Ph.D. in microbiology after working as a waitress at the Cheesecake Factory?

    • Answer: Bernadette Rostenkowski-Wolowitz.

27. In which season does Penny eventually confess her love to Leonard?

    • Answer: 6

28. In which season did Penny and Leonard start getting more serious after Leonard's three-month expedition to the North Pole?

    • Answer: 3

29. The show was picked up for a full 22-episode season on what date?

    • Answer: October 19, 2007

30. In season 3, Howard starts dating whom?

    • Answer: Bernadette

31. What do Howard and Bernadette do at the end of season 5?

    • Answer: Get married

32. How many total episodes does "The Big Bang Theory" have?

    • Answer: 279

33. What was the title of the last episode of the show?

    • Answer: The Stockholm syndrome

34. In the season three finale, how do Raj and Howard discover Sheldon's future romantic interest, Amy Farrah Fowler?

    • Answer: Online dating on his behalf

35. Which member of the cast has an actual neuroscience Ph.D. in real life?

    • Answer: Mayim Bialik

36. What is the name of the science show host Sheldon and Leonard adore so much, who is portrayed by Bob Newhart?

    • Answer: Professor Proton

37. Who performs the "Big Bang Theory" theme song?

    • Answer: Barenaked Ladies

38. Stuart runs a comic book store. What is the name of the store?

    • Answer: The Comic Center of Pasadena

39. What’s Leonard and Sheldon’s apartment number?

    • Answer: 4A

40. Which University did Leonard go to?

    • Answer: Princeton

41. Where is Leonard from?

    • Answer: New Jersey

42. What’s Rajesh’s job?

    • Answer: Astrophysicist

43. Among the main characters, who is the one that doesn't wear glasses?

    • Answer: Howard

44. Which color is Penny’s laptop?

    • Answer: Pink

45. What is Leonard's primary health concern?

    • Answer: He is lactose intolerant

46. What does Sheldon always wear?

    • Answer: A short-sleeved T-shirt on top of a long-sleeved T-shirt

47. What does Penny always call Sheldon?

    • Answer: Sweetie

48. What is Leonard’s mum's first name?

    • Answer: Beverly

49. What is Sheldon’s YouTube channel/podcast called?

    • Answer: Fun with flags

50. Who is Debbie?

    • Answer: Howard’s mum

51. What is the name of Rajesh’s dog?

    • Answer: Cinnamon

52. What Ph.D. does Bernadette have?

    • Answer: Microbiology

53. What’s Amy’s job?

    • Answer: Neurobiologist

54. In the first episode, what does Penny request Leonard to retrieve from his former boyfriend's residence?

    • Answer: Her TV

55. What does Sheldon order by fiber content?

    • Answer: His cereals

56. How many siblings does Leonard have?

    • Answer: Two

57. In which television series does Penny secure a minor acting role?

    • Answer: NCIS

58. During the second season, Penny gives Sheldon a Christmas present, which is a napkin signed by whom?

    • Answer: Leonard Nimoy

59. In "The Bath Item Gift Hypothesis" episode, what does Sheldon plan for Amy's birthday celebration?

    • Answer: A romantic scavenger hunt

60. Which episode features Leonard and Penny tying the knot in Las Vegas?

    • Answer: The Conjugal Conjecture

61. In which episode do Sheldon and Amy share their first kiss?

    • Answer: The Locomotive Manipulation

62. What is the name of the annual physics bowl competition that the characters participate in?

    • Answer: The "Physics Bowl"

63. Why does Sheldon find himself trapped in the bathtub during the episode titled "The Adhesive Duck Deficiency"?

    • Answer: While taking a bath, he attempts to solve an issue but becomes mentally paralyzed.

64. How tall is Bernadette?

    • Answer: 4′ 10″

65. According to Penny, the guy's time machine “looks like something _______ would drive through the Everglades”.

    • Answer: Elton John

66. What comparison does Sheldon make to describe Penny and Leonard's potential relationship?

    • Answer: Schrödinger’s Cat

67. Who does Howard meet when he helps serve Thanksgiving dinner at a shelter?

    • Answer: Elon Musk

68. Where is Rajesh from?

    • Answer: India

69. Which character goes to space?

    • Answer: Howard

70. Which character’s surname is Farrah Fowler?

    • Answer: Amy

71. Who couldn't Rajesh talk to at the beginning of the show?

    • Answer: Women