Q20 · THE QUIZ POST
The Daily Quiz — 15 September 2026
Play the The Quiz Post quiz for 15 September 2026: 20 free general-knowledge questions covering Sport, Current Affairs, Nature and Science, with explanations and crowd results.
About this edition
This 20-question The Quiz Post edition was published for 15 September 2026. Answer all four-option questions to reveal sourced explanations and see how other players answered.
Topics in this edition include Sport, Current Affairs, Nature and Science.
Questions and sourced explanations
This archive edition remains playable. The notes below contain spoilers and provide the question text, explanatory context and source used for each item.
Read this edition’s question notes (spoilers)
Sport · Easy
1. Which circuit hosts the British Formula One Grand Prix?
Silverstone hosts the British Grand Prix and staged the first world-championship Formula One race.
Science · Easy
2. The three smallest bones in the human body are found in which part of the body?
The malleus, incus and stapes are the tiny ossicles of the middle ear; the stapes is the smallest bone in the human body.
Source: National Institute on Deafness and Other Communication Disorders
Food & Drink · Easy
3. Baklava is traditionally made with layers of which very thin pastry?
Baklava is made by layering very thin filo, or phyllo, pastry with nuts and a sweet syrup or honey mixture.
Society & Culture · Easy
4. Which dance and musical tradition of the Río de la Plata is shared culturally by Argentina and Uruguay?
Tango developed in the Río de la Plata cities of Buenos Aires and Montevideo and is recognised as a shared tradition of Argentina and Uruguay.
Sport · Medium
5. What is the traditional name of England and Wales' county first-class cricket competition?
The County Championship is the domestic county first-class competition.
Source: England and Wales Cricket Board (ECB) - The Official Website of the ECB
Current Affairs · Medium
6. The UK signed new fusion-energy cooperation agreements on 14 September 2026 with which country?
The agreements combined UK and US expertise in fusion, computing and artificial intelligence.
Source: UK and US fusion strike partnership to accelerate clean energy - GOV.UK
Music · Medium
7. Which minor key is the relative minor of C major, sharing the same key signature?
C major and A minor are relative keys: both use the same key signature, with no sharps or flats.
Nature · Medium
8. Snails, clams, squid and octopuses all belong to which major group of animals?
Mollusca is a large animal phylum that includes gastropods such as snails, bivalves such as clams, and cephalopods such as squid and octopuses.
Society & Culture · Medium
9. Henley Royal Regatta is held on which river?
The regatta's course is on the River Thames at Henley-on-Thames.
Business & Economics · Medium
10. What is the main risk-management idea behind diversifying an investment portfolio?
Diversification spreads money across different investments so poor performance in one area has less effect on the whole portfolio.
Film & TV · Medium
11. In Superman stories, Clark Kent works as a reporter for which fictional newspaper?
Clark Kent's civilian career is as a journalist at Metropolis's Daily Planet newspaper.
Technology · Medium
12. Which type of software manages a computer's hardware resources and provides the basic platform for applications?
An operating system manages hardware resources and provides services and an environment in which application software can run.
Literature · Hard
13. William Faulkner set many of his novels and stories in which fictional Mississippi county?
Faulkner created Yoknapatawpha County as the fictional Mississippi setting for much of his interconnected fiction.
Geography · Hard
14. Lake Geneva drains westward through Geneva into which major European river?
The Rhône enters Lake Geneva from the east and leaves it at Geneva, continuing west and south through France to the Mediterranean.
Current Affairs · Hard
15. NASA released an open-source Lunar Foundation Model this week in partnership with which technology company?
IBM and NASA released the open-source Lunar Foundation Model to help researchers analyse lunar data and identify features such as ice deposits and craters.
History · Hard
16. Who was the first woman to take her seat in the UK House of Commons?
Astor took her seat in 1919; Markievicz had been elected earlier but did not take hers.
Science · Hard
17. For a reversible reaction at equilibrium, what effect does adding a catalyst have on the equilibrium position?
A catalyst speeds the forward and reverse reactions equally. It helps the system reach equilibrium faster but does not change the equilibrium position or equilibrium constant.
Arts · Hard
18. The annual Portrait Award at London's National Portrait Gallery recognises excellence in what medium?
The gallery's long-running award is an international competition for portrait painting.
Source: Portrait Award winners - Group - National Portrait Gallery
Sport · Hard
19. In snooker, what is the standard maximum break when no free ball is involved?
A standard maximum break is 147: fifteen reds each followed by a black, then all six colours in sequence.
Source: World Professional Billiards and Snooker Association
Nature · Hard
20. In vascular plants, which tissue transports sugars made by photosynthesis from leaves to other parts of the plant?
Phloem transports sugars and other organic products of photosynthesis from source tissues such as leaves to growing or storage tissues elsewhere in the plant.