Only A Few Can Score 85% On This Big Bang Theory Quiz

While it’s hard to believe, it’s been nearly three whole years since The Big Bang Theory finished airing on CBS. Nevertheless, the popular nerd culture sitcom still remains one of the most resonant TV shows in recent memory. We know you have a brilliant mind, so now is the time to show it off. Take this quiz and see if your IQ stacks up to the smartest people on "The Big Bang Theory."

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What is the name of Sheldon’s childhood hero, who is played by Bob Newhart?

Professor Molecule

Professor Proton

The Pluto Protector

Captain Atom

Professor Proton
The episode, a tie-in with May the Fourth (aka Star Wars Day), centered on Sheldon (Jim Parsons) learning of the passing of Arthur Jeffries, aka Professor Proton (played by Emmy winner Bob Newhart), his childhood hero.

What is Sheldon’s signature catchphrase?

“Missed it by that much.”

“That’s what she said.”


“Holy rigatoni!”

One of the most recognizable lines from The Big Bang Theory is Sheldon’s catchphrase — “bazinga!” As fans know, it is used to signal the completion of a prank.

What song does Sheldon sing to Penny after she is released from the hospital in “The Adhesive Duck Deficiency”?

The Soft Kitty Song

Old MacDonald Had a Farm

Ribbit, Ribbit, Mr. Frog

Hey There, Mr. Cat

The Soft Kitty Song
“Soft Kitty” is a children’s song, popularized by the characters Sheldon and Penny in the American sitcom The Big Bang Theory, and which elsewhere may be rendered as “Warm Kitty”.

What nickname does Sheldon’s mother have for him?





Shelly is the nickname for Sheldon used by his mother and his sister. This nickname was first mentioned by his mother during the “The Luminous Fish Effect”. Sheldon does not seem to like it when non-family members use this nickname. He tells Howard, “And don’t ever call me Shelly.”

What is the name of Sheldon and Amy’s video podcast?

The Sheldon Show

Sheldon Boldly Goes Where No Sheldon Has Gone Before

Sheldon Cooper Presents Fun With Flags

The Big Bang Theory

Sheldon Cooper Presents Fun With Flags
Amy Farrah Fowler Present: Dr. Sheldon Cooper’s Fun With Flags) is a YouTube/podcast show that Sheldon and Amy make to teach vexillology, the study of flags.

Sheldon has had a long-standing feud with which Star Trek actor?

LeVar Burton

Wil Wheaton

Patrick Stewart

William Shatner

Wil Wheaton
If the show gets to 1995, it could theoretically cover the infamous Dixie Trek Convention that started Sheldon’s feud against this alternate version of Wil Wheaton.

What is the name of Raj’s Yorkshire terrier?


Yorkshire Terrier



Cinnamon is Raj’s dog, a Yorkshire Terrier given to him by Howard and Bernadette in “The Transporter Malfunction” (S05E20) after his failed date with a woman called Lakshmi so that he could get through his loneliness without having a girlfriend.

In the pilot, Penny works as a waitress in what restaurant?

Cheesecake Factory

Olive Garden



Cheesecake Factory
The Cheesecake Factory is a restaurant in Pasadena where Penny worked as a waitress to pay her bills and where Leonard, Sheldon, Raj and Howard often go to eat.

What country is Raj originally came from?





Rajesh “Raj” Ramayan Koothrappali, Ph.D. is a fictional character on the CBS television series The Big Bang Theory, portrayed by British actor Kunal Nayyar. Rajesh, who is normally called Raj or just by his surname Koothrappali, is from New Delhi, India and of Malayalam descent.

What special skill does Sheldon possess?

Eidetic memory




Eidetic memory
He frequently states that he possesses an eidetic memory although the correct term for this type of recall is hyperthymesia (highly superior autobiographical memory) He also states that he has an IQ of 187, though he claims his IQ cannot be accurately measured by normal tests (further confirming his egotism).

What city does “The Big Bang Theory” take place in?

Pasadena, California

Tampa, Florida

Houston, Texas

Phoenix, Arizona

Pasadena, California
The show is set in Pasadena, which is in Los Angeles County, California, This is where Leonard, Penny, Sheldon, and Raj’s apartment block is, and many of their haunts are also in the area (although Howard lives with his motherm north of Pasadena in Altadena in the first six seasons.

What fictional language can Howard speak?





Besides English, Howard can speak eight languages including French, Mandarin, Russian, Arabic, Latin, Persian, Japanese, and the constructed language Klingon from the Star Trek franchise. He also knows some words in Sindarin, one of the elvish dialects invented by J.R.R. Tolkien for The Lord of the Rings.

Murphy Brown



Full House

He played Leonard Hofstadter in the CBS sitcom The Big Bang Theory (2007–2019) for which he received a Primetime Emmy Award nomination, and David Healy in the ABC sitcoms Roseanne (1992–1997; 2018).

Which Batman actor has appeared on the show?

Christian Bale

Adam West

Val Kilmer

Michael Keaton

Adam West
Iconic Batman TV actor Adam West is among the many names on that list, and was actually The Big Bang Theory’s special guest star for their 200th episode. In The Big Bang Theory season 9, episode 17 (“The Celebration Experimentation”) the Pasadena gang came together for Sheldon’s (Jim Parsons) birthday party.

Who is the only cast member to have earned a PhD in real life?

Kunal Nayyar

Kaley Cuoco

Jim Parsons

Mayim Bialik

Mayim Bialik
Mayim Chaya Bialik is an American actress, game show host, and author. From 2010 to 2019, she played neuroscientist Amy Farrah Fowler on the CBS sitcom The Big Bang Theory, for which she was nominated four times for the Primetime Emmy Award for Outstanding Supporting Actress in a Comedy Series and won the Critics’ Choice Television Award for Best Supporting Actress in a Comedy Series in 2015 and 2017.

Which character has a twin sister?





Courtney Henggeler is an American actress. She is also known as playing the adult version of Sheldon Cooper’s twin sister, Missy, in The Big Bang Theory.

What state is Penny originally from?





Penny was born on December 2, 1985, in Nebraska, a small a town outside of Omaha to Wyatt and Susan. She also has one sister named Lisa and one brother named Randall.

What is Howard’s astronaut nickname?


Buck Rogers

Froot Loops


Froot Loops
Howard Joel Wolowitz, M.Eng. is a fictional character on the CBS television series The Big Bang Theory, portrayed by actor Simon Helberg. He has the unwanted astronaut nickname “Froot Loops”.

Which “Big Bang Theory” actor did Kaley Cuoco, the actress who plays Penny, date in real life?

Kunal Nayyar

Johnny Galecki

Simon Helberg

Jim Parsons

Johnny Galecki
In 2007, while working on The Big Bang Theory, Cuoco privately dated co-star Johnny Galecki for roughly two years, until December 2009. She later told CBS Watch in September 2010 that they have remained on good terms since ending their relationship.

In “The Work Song Nanocluster,” the guys help Penny make what item all night long?




Hair barrettes

Hair barrettes
Penny Blossom. The brand of hair berets that Penny first made in with Sheldon’s help in “The Work Song Nanocluster” and has been seen wearing in “The Dead Hooker Juxtaposition” “The Countdown Reflection”. After Sheldon delivers a box of sequins to Penny he helps he refine her manufacturing process.

What does Sheldon always order to eat when he is at Cheesecake Factory?





Sheldon always orders the barbecue bacon cheeseburger with the barbecue sauce, bacon and cheese on the side. Leonard cannot have any “cheese” products, being lactose intolerant. The Cheesecake Factory was included in the plot on account of product placement.

In the episode “The Middle Earth Paradigm,” the four main male characters all dress up as the same superhero. Which superhero is it?



Iron Man

The Flash

The Flash
In “The Justice League Recombination”, Sheldon dresses as the Flash and acts like him throughout the episode. At the end of the episode he imagines himself as the Flash and runs to the Grand Canyon to scream in frustration “Good Lord, how you frustrate me, Leonard Hofstadter!” and returns to home.

Why is the elevator broken in Leonard and Sheldon’s apartment building?

The landlord has just never fixed it.

Sheldon tried to make it go faster and failed.

It actually works fine.

Leonard blew it up.

Leonard blew it up
In Season 3 Leonard explains that he was testing out an experimental rocket fuel with Howard and Raj when they figure out they incorrectly calculated the required fuel needed for Howard’s model rocket.

In “The Panty Piñata Polarization,” Raj and Howard come to love what reality TV show?

The Voice

America’s Next Top Model


American Idol

America’s Next Top Model
The two models who open the door for Raj (Kunal Nayyar) and Howard (Simon Helberg) are Lio Tipton and Samantha Potter, who were actual contestants on America’s Next Top Model (2003).

What Disney princess does Bernadette dress up as when she and the gang go to Disneyland?



Sleeping Beauty


The girls dress up as Disney princesses. Bernadette is Cinderella, Penny is Sleeping Beauty, and Amy is Snow White.

Who is the only main character whose last name has not been revealed?





The cast of The Big Bang Theory filmed 279 episodes before the show wrapped after 12 seasons. Over the years, fans became intimately familiar with Leonard Hofstadter, Sheldon Cooper, Raj Koothrappali, Howard Wolowitz, and Penny. Penny wasn’t given a surname at first because there simply wasn’t a need for one.

In “The Precious Fragmentation,” the guys buy a box at a garage sale that contains a valuable movie prop. What movie does the prop come from?

The Lord of the Rings

Star Wars


Blade Runner

The Lord of the Rings
The guys come in possession of a ring used in “The Lord of the Rings.” However, the ring drives a wedge through the friends.

Who is the first woman Raj can speak to without drinking first?





This went on for years until in the season 6 finale titled “The Bon Voyage Reaction,” when everybody realized that Raj can suddenly talk to Penny (Kaley Cuoco) despite being sober.

The guys have added their unique twist on “Rock, Paper, Scissors.” What two things have they added?

The Force and Luke

Kryptonite and Superman

Lizard and Spock

Ring and Frodo

Lizard and Spock
“The Lizard-Spock Expansion” is the eighth episode of the second season of the American sitcom The Big Bang Theory. This episode first aired on Monday, November 17, 2008.

Where do Bernadette and Howard get married?

On the apartment rooftop

On a beach

In Las Vegas

At a courthouse

On the apartment rooftop
The wedding of Howard Wolowitz and Bernadette Rostenkowski took place in the Season 5 finale “The Countdown Reflection” on the rooftop of Leonard, Sheldon and Penny’s apartment building.

What is Howard’s highest level of education?

High school diploma


Bachelor’s degree

Master’s degree

Master’s degree
Unlike Leonard, Sheldon, and Raj, Howard lacks a Ph. D., instead having a Master’s degree from MIT (he first studied in medical school but dropped out since he was terrified of blood).

Crazy in Love

Marry You

Don’t Stop Believin’

You’ve Got a Friend in Me

You’ve Got a Friend in Me
Penny said: Leonard, you’re not only the love of my life but you’re my best friend. And you’ve got a friend in me, you got trouble I got ’em too. There isn’t anything I wouldn’t do for you. We stick together, we can see it through ’cause you’ve got a friend in me.

What instrument does Sheldon regularly play on the show?





Accordingly, the theremin is most often a novelty – a prop for Led Zeppelin’s Jimmy Page, a gag for The Big Bang Theory’s Sheldon Cooper, a flying-saucer sound-effect in countless B-movie soundtracks. In the hands of an amateur, the theremin yowls and screeches.

What day of the week becomes the day where “anything can happen”?





Thursday night was at one time Souplantation night, but Sheldon changed this to Big Boy night when they started eating at the Cheesecake Factory (The Hamburger Postulate). The guys decided to make the third Thursday of every month “Anything Can Happen Thursday” in (The Hofstadter Isotope), which was later revived in (The Anything Can Happen Recurrence).

What is Howard’s mother’s name?





During Thursday’s “The Comic Book Store Regeneration” episode, Howard (Simon Helberg) learns that his mother, Debbie Wolowitz — voiced by the late Carol Ann Susi — passed away in her sleep while on vacation in Florida.

Before “The Big Bang Theory,” Kaley Cuoco starred in what other sitcom?

How I Met Your Mother

Arrested Development


8 Simple Rules

8 Simple Rules
In September 2002, she began a starring role as Bridget Hennessy on the ABC sitcom 8 Simple Rules for Dating My Teenage Daughter (afterwards 8 Simple Rules).

What gift did Penny give Leonard before he embarked on a trip to Antarctica?

A picture of herself

A snuggie

A jacket

A comic book

A snuggie
Howard had convinced his mother to let him go so he puts them on the phone together. Then she cries, “Arctic? I thought you were going to Arkansas!” Penny asks to see Leonard who is happy to removed himself from the arguments. Penny then presents him with a blue blanket with sleeves, a Snuggie that she saw on an infomercial to keep him warm while he does his science stuff.

On Sheldon and Amy’s first date, who goes with them to help Sheldon?





Penny convinces Sheldon that he should get to know the mother of his future child by going on date with Amy, this date which would be his first ever. As Sheldon needs a ride to the date, Penny, his chauffeur, ends up accompanying him on the date, which she quickly comes to regret.

According to Sheldon, what is the best number?





Sheldon: “The best number is 73. Why? 73 is the 21st prime number. Its mirror, 37, is the 12th and its mirror, 21, is the product of multiplying 7 and 3.”‘”

Where did Sheldon and Amy’s first kiss occur?

At a restaurant

In Sheldon’s apartment

In the lab

On a train

On a train
The two were on a train together on Valentine’s Day when Amy finally became fed up with Sheldon’s lack of romance. Out of frustration, he sarcastically started doing romantic things for her, which led to the kiss — one they both obviously enjoyed.

The result says, “YOU FAILED.” 😔

But, nice try…

Will you settle for an average score?  🤔 

Next time, try a little harder…

You slayed!!! 👏


  • 1 winner
  • Prize:
    $100 Amazon Gift Card

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