If you like quiz questions that feel easy at first glance and then quietly trip you up, this one’s for you.
Every day on Quizified we ask 10 questions across 10 categories. Over a full month that adds up to roughly 300 questions. Some are straightforward. Others turn out to be far tougher than expected.
This post brings together the 20 hardest questions from September 2025, based on how real players actually performed. Each question here was answered correctly by fewer than a third of players, often much less.
The data comes from over 5,000 attempts in total. Nothing theoretical. Just what people really clicked.
Try the questions first before scrolling. The answers are hidden at the bottom so you can play it properly.
The questions
Which country’s royal family has the surname Bernadotte?
A) Norway
B) Denmark
C) Sweden
D) Belgium
Correct answer rate: 22%
In which country is Romansh an official language?
A) Italy
B) Switzerland
C) Austria
D) Liechtenstein
Correct answer rate: 24%
What mineral is named after the Greek goddess of the Moon?
A) Selene
B) Selenite
C) Lunarite
D) Artemisite
Correct answer rate: 21%
“Necessity is the mother of invention” is most often attributed to whom?
A) Plato
B) Aristotle
C) Francis Bacon
D) Socrates
Correct answer rate: 23%
In Game of Thrones, the White Walkers are also known as what?
A) The Frozen
B) The Others
C) The Night Guard
D) The Pale Men
Correct answer rate: 21%
In Frasier, what was the name of Niles’s first wife?
A) Daphne
B) Mel
C) Maris
D) Lilith
Correct answer rate: 24%
Who did Novak Djokovic beat in the Wimbledon men’s final in 2022?
A) Rafael Nadal
B) Carlos Alcaraz
C) Matteo Berrettini
D) Nick Kyrgios
Correct answer rate: 31%
Who holds the record for the most Epsom Derby wins as a jockey, with nine victories?
A) Frankie Dettori
B) Lester Piggott
C) Willie Carson
D) Pat Eddery
Correct answer rate: 32%
Which composer wrote Crown Imperial, a march played at several British coronations?
A) Edward Elgar
B) Benjamin Britten
C) Ralph Vaughan Williams
D) Hubert Parry
Correct answer rate: 22%
Who performed the song “When Can I See You Again?” from the film Wreck-It Ralph?
A) Owl City
B) OneRepublic
C) Imagine Dragons
D) Maroon 5
Correct answer rate: 28%
Who wrote “I must go down to the sea again, to the lonely sea and the sky”?
A) John Masefield
B) Rudyard Kipling
C) Robert Louis Stevenson
D) Alfred Tennyson
Correct answer rate: 16%
Which of these paintings was created by Kandinsky?
A) The Persistence of Memory
B) Composition VIII
C) The Kiss
D) Guernica
Correct answer rate: 19%
According to The Hustle, what proportion of US households had a net worth of at least $1 million in 2024?
A) 5 percent
B) 8 percent
C) 12 percent
D) 18 percent
Correct answer rate: 8%
In July 2025, what percentage of German trains arrived within six minutes of schedule?
A) 56 percent
B) 63 percent
C) 71 percent
D) 78 percent
Correct answer rate: 14%
What is the most northerly point of the UK mainland?
A) Cape Wrath
B) Dunnet Head
C) John o’ Groats
D) Duncansby Head
Correct answer rate: 17%
The Albert Memorial is located in which London park?
A) Hyde Park
B) Green Park
C) Kensington Gardens
D) St James’s Park
Correct answer rate: 25%
What disease used to be known as “The King’s Evil”?
A) Leprosy
B) Gout
C) Tuberculosis
D) Scrofula
Correct answer rate: 12%
Who built the first steam-powered locomotive to run on rails?
A) James Watt
B) Richard Trevithick
C) George Stephenson
D) Matthew Murray
Correct answer rate: 14%
After Napoleon’s defeat, which alliance was formed on this day in 1815?
A) The Triple Alliance
B) The Quadruple Alliance
C) The Concert of Europe
D) The Holy Alliance
Correct answer rate: 22%
Which American won the US Open in 1938, becoming the first tennis player to achieve a calendar-year Grand Slam?
A) Bill Tilden
B) Jack Kramer
C) Don Budge
D) Ellsworth Vines
Correct answer rate: 23%
What score should you expect?
Based on how players actually performed across all 20 questions, the expected score is around 4 to 5 out of 20.
If you reached double figures, you comfortably beat the average. A perfect score would be extremely rare.
Answers
Sweden
Switzerland
Selenite
Francis Bacon
The Others
Maris
Nick Kyrgios
Lester Piggott
Edward Elgar
Owl City
John Masefield
Composition VIII
8 percent
63 percent
Dunnet Head
Kensington Gardens
Scrofula
Richard Trevithick
The Quadruple Alliance
Don Budge
If you enjoyed this
This quiz represents the hardest 20 questions from a full month of daily quizzes. On Quizified, most days are far more forgiving, and you get instant feedback on how you compare to everyone else.
You can play the daily quiz for free, track your stats over time, and even create leagues with friends, family, or colleagues for some light competition.
You can try it at
https://quizified.app/app
If you want to keep going, the next post in this series is The Monthly Quiz Most Players Fail: October 2025, or you can go back to August 2025 to see how the series started.
