How to read your result
Your score is how many of today's 10 questions you answered right within the time. Everyone gets the same questions on the same day, so once enough people have played, you also see today's average and how many players you beat. After the last question you see every right answer with a short fact, so you learn something either way.
- Score: right answers out of 10. A question left unanswered when the clock runs out counts as wrong.
- The squares: green for right, red for wrong, in the order of the questions. They're what you share, so friends see how you did without seeing the answers.
- Today's players: shown once 20 people have played that day. Replays don't count.
- Streak: the days in a row you've played, kept in this browser only.
Quick facts
- What it measures: general knowledge, part of what psychologists call crystallized intelligence: what you have learned, rather than how fast you reason. Adults tend to keep adding to it well into middle age [2].
- How questions are compared: researchers have measured what share of people answer each of hundreds of trivia questions, so questions can be picked by difficulty [1]. Our questions are our own; today's players are the comparison.
- Quizzing helps memory: answering questions about something helps you remember it later better than just reading it again [3].
How the quiz works
- Each day at midnight UTC a new set of 10 questions starts, easier ones first.
- Each question has four answers and a clock of 20 seconds. Tap an answer or press 1–4.
- After the last question you see your score, the right answers, a fact for each question, and how today's players did.
Our question bank has 665 questions, enough for 66 days, and we keep adding more. The questions avoid anything tied to one country, so they work in every language; each one was checked against a reference source. Your answers go to our server, which scores them and returns the answers only after you finish.
What affects your score
- Luck of the day. Ten questions is a small sample: one day's topics may suit you, the next day's may not.
- Reading speed matters a little, because of the clock.
- What you read and where you grew up. General knowledge reflects interests and experience, not only memory [2].
What this quiz can and can't tell you
The quiz is a game. One day's score says little about how much you know in general; your average over many days says more. It is not an IQ test and not a memory test, and it says nothing about your health.
Frequently asked questions
Is the quiz the same for everyone?
Yes. Everyone who plays the Helibrain daily quiz on the same day (by UTC time) gets the same 10 questions, so you can compare scores with friends. The share button sends your score and a row of green and red squares, never the answers.
When does the next quiz start?
A new Helibrain daily quiz starts every day at midnight UTC. The result screen shows how long until the next one.
Can I play again?
You can, but a replay doesn't count for today's players or your streak, since you've already seen the answers.
Where do the questions come from?
We write the Helibrain daily quiz questions ourselves and check each answer against a reference source such as an encyclopedia. If you think an answer is wrong, please tell us through the contact page.
Is the Helibrain daily quiz free?
Yes. The quiz and your full result are free: no sign-up, no email, no payment. We save results with your IP address and country to build comparisons, as our privacy policy explains. Helibrain makes money from its app, which has a free plan and paid plans; you don't need the app for this quiz.
Related tests
- Vocabulary testHow many words you know, from a mix of real and made-up words.
- Three-word riddlesFind the one word that links three others. Five new riddles every day.
- Verbal memory testHow long you can tell new words from ones you have seen.
Want to work on this daily? The Helibrain app has a free plan and paid plans.
Sources
- Tauber SK, Dunlosky J, Rawson KA, Rhodes MG, Sitzman DM (2013). General knowledge norms: updated and expanded from the Nelson and Narens (1980) norms. Behavior Research Methods 45(4):1115–1143. doi.org/10.3758/s13428-012-0307-9
- Ackerman PL (2000). Domain-specific knowledge as the "dark matter" of adult intelligence: Gf/Gc, personality and interest correlates. Journal of Gerontology: Psychological Sciences 55(2):P69–P84. doi.org/10.1093/geronb/55.2.P69
- Roediger HL, Karpicke JD (2006). Test-enhanced learning: taking memory tests improves long-term retention. Psychological Science 17(3):249–255. doi.org/10.1111/j.1467-9280.2006.01693.x
How we made this page: written by the Helibrain team from the studies listed above, and reviewed by Robert (biophysics PhD candidate) on 4 November 2026. We update it when the sources change.