The Hardy Boys
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50 free The Hardy Boys trivia questions with answers — literature quiz, new questions added Oct 2026.
Frank and Joe Hardy have been chasing crooks around Bayport since 1927, and the brothers have never really left the shelf. Generations of readers met them through a classroom copy of The Tower Treasure, then came back for the motorcycles, the motorboats and the detective father who somehow keeps needing to be rescued. This quiz starts with the first and most-read mystery, The Tower Treasure, then moves through favourites such as The House on the Cliff, The Secret of the Old Mill, The Missing Chums and Hunting for Hidden Gold. There are questions on book 21, The Clue of the Broken Blade, and on The Battle of Bayport from the newer Hardy Boys Adventures, plus a look at the people who really wrote the stories and at the television versions. Plot questions follow the revised editions sold today unless a question says otherwise. It is written for young readers who have just finished a book and want to check what they remember, for teachers and parents who need a quick comprehension quiz, and for grown-up fans who still know their way around Bayport. Every answer comes with a short explanation.
30 of 50 questions with answers and explanations. Play the quiz
Q 01Which pen name is credited on the Hardy Boys series, although many different ghostwriters wrote the books?
Franklin W. Dixon
Franklin W. Dixon never existed. The name was a house pseudonym, so the byline stayed the same whichever writer was hired, and the writers were barred from using it on their own.
Q 02Which girl detective was created as a counterpart after the Hardy Boys books became an instant hit?
Nancy Drew
Nancy Drew arrived in 1930, three years after the brothers. Their creator launched her precisely because the boys' books had sold so well so quickly.
Q 03Which actor played Joe Hardy opposite Parker Stevenson's Frank in the 1977 ABC mystery series?
Shaun Cassidy
Shaun Cassidy was the first actor cast, as producers wanted someone like his half-brother David. He was 18 when the show premiered in January 1977, six years younger than his on-screen older brother.
Q 04In The Tower Treasure, what disguise do the Hardy Boys work out that the speeding driver was wearing?
A red wig
A red wig explained why witnesses disagreed about the thief's hair colour. The boys later found it in the woods where a stolen jalopy had been abandoned.
Q 05In The Tower Treasure, which friend of the Hardy Boys has his yellow jalopy stolen by the thief?
Chet
Chet Morton lost a tire to the same thief soon afterwards, and that second theft helped the brothers find the abandoned car.
Q 06In the first Hardy Boys book, what did the old railroad tower where the stolen loot turns up once hold?
Water
Water was what the disused tower had stored. The dying thief said only that the loot was in the old tower, so everyone searched the towers of the robbed mansion first.
Q 07In The Battle of Bayport, which war are the Hardy Boys re-enacting when a stray shot hits a real victim?
The Revolutionary War
The Revolutionary War battle is staged with Frank and Joe in opposing armies, arguing over freedom and taxes, until the mock fight produces a genuine casualty.
Q 08In the 1969 Hardy Boys cartoon, what do Frank and Joe do while solving mysteries on the road?
Tour as a rock band
The animated brothers tour as a rock band, and real musicians released two albums under the Hardy Boys name. The cartoon reached Saturday mornings in September 1969, the same month as Scooby-Doo.
Q 09Which aunt of the Hardy Boys does the family strive to please in early books because of her small fortune?
Gertrude
Gertrude first turns up in the original 1928 text of The Missing Chums, arriving for a long visit and disapproving of children going out in boats.
Q 10In The Tower Treasure, what name has the Hardy Boys' friend given to the yellow jalopy that gets stolen?
Queen
Queen was abandoned in a patch of public woodland, and searching that spot later turned up the thief's discarded disguise.
Q 11Which brother and sister own the Tower Mansion that is robbed in the first Hardy Boys mystery?
The Applegates
The Applegates, Hurd and Adelia, lost forty thousand dollars in securities and jewels, and Hurd was quick to blame a member of his own staff.
Q 12In the Hardy Boys book The Tower Treasure, which mansion employee is wrongly blamed for the robbery?
The caretaker
The caretaker, Henry Robinson, looked guilty because he had suddenly paid off a debt and would not say where the cash came from.
Q 13In The Tower Treasure, which man locks the Hardy Boys in with the loot, claiming it as his?
Hobo Johnny
Hobo Johnny believed that anything found there belonged to him, but the brothers broke out and carried the valuables back to their owners.
Q 21Which name does the championship sword sought by the Hardy Boys in The Clue of the Broken Blade carry?
Adalante
Adalante is a family saber of the brothers' instructor, and the hunt is for its missing half, which rivals are also racing to find.
Q 22In The Clue of the Broken Blade, what is supposedly written on the sword the Hardy Boys are hunting?
A will
A will is said to be inscribed on it, naming the brothers' instructor as a major heir to his late grandfather's fortune.
Q 23In the original 1942 Clue of the Broken Blade, which criminals do the Hardy Boys help break up?
Truck hijackers
Truck hijackers were the villains of the first telling, which was later replaced by an entirely different story published under the same title.
Q 14At the end of The Tower Treasure, what does the mansion's owner build for the man the Hardy Boys cleared?
A greenhouse
A greenhouse was something the wronged man had long wanted, and it came with his old job back and a raise in pay.
Q 15In The Tower Treasure, what is the thief riding when a crash sends him to hospital, where he confesses?
A handcar
A handcar accident on the tracks left him dying, and he managed only a few words about where the loot was before he could explain what he meant.
Q 16In The Tower Treasure, to which city does the Hardy Boys' father trace the maker of the thief's disguise?
New York
New York City was where the disguise had been made, and there the detective learned of a crook with a fondness for dressing up.
Q 17In The Tower Treasure, what must the Hardy Boys' friend Perry do once his accused father cannot find work?
Quit school for a job
Perry would have to quit school for a job, which is why Frank and Joe took the accusation personally and set out to clear the family name.
Q 18What is the first name of the Hardy Boys' father, a famous detective his sons often end up rescuing?
Fenton
Fenton Hardy is a great detective on paper, yet one critic notes he is forever losing his case notes or needing rescue, leaving Frank and Joe to finish the job.
Q 19What colour is the hair of Joe Hardy, the younger and more impulsive of the Hardy Boys?
Blond
Blond hair is almost the only thing that sets Joe apart: one commentator joked that the boys' characters came down to Frank being dark and Joe fair.
Q 20In The Clue of the Broken Blade, which state do the Hardy Boys visit to find the sword's missing half?
California
California is where the trail leads, with rivals racing the brothers there to reach the missing half of the sword first.
Q 24In the Hardy Boys adventure The Battle of Bayport, which benefactor of the town is hit by a stray shot?
Don Sterling
Don Sterling goes down during the mock battle, and the brothers, who had officially retired from detective work, cannot resist finding out who fired a live round.
Q 25In The Battle of Bayport, who turns out to be a prime suspect, drawing the Hardy Boys into the case?
A favorite teacher
A favorite teacher, Mr. Lazin, looks guilty, and the brothers begin to wonder whether someone is trying to frame him.
Q 26In The Battle of Bayport, which discovery leads the Hardy Boys' town to stage a historical reenactment?
An old battleship
An old battleship turned up along with a trove of historic artifacts, and the town celebrated by restaging a local battle with antique artillery.
Q 27Who narrates the Hardy Boys Adventures, the 2013 series that includes The Battle of Bayport?
Both brothers, alternating
Both brothers, alternating chapter by chapter, tell the story in the first person, where the classic books used an outside narrator.
Q 28In The House on the Cliff, which criminals are the Hardy Boys sent to watch for from the clifftop?
Smugglers
Smugglers were using a hidden tunnel at the foot of the cliff, and the brothers were captured there themselves while trying to free their captive father.
Q 29In The Secret of the Old Mill, what is the gang caught by the Hardy Boys secretly producing?
Counterfeit money
Counterfeit money came off a printing press in a hidden room, and the brothers first met it when a friend was handed a fake twenty at the station.
Q 30In the revised Hardy mystery The House on the Cliff, what does the captured villain want his house to become?
A home for underprivileged boys
A home for underprivileged boys was his wish once he knew prison was coming. He apologised and described a hard life under the selfish uncle who had owned the house.