[Interesting] A collection of brain teaser quiz questions. Let's train your brain!
Have you ever thought, “My thinking ability has declined lately,” or “I’ve been making a lot of careless mistakes”? Maybe you’ve been more forgetful, too.
In times like that, how about trying some brain exercises or quizzes? We’ve gathered a wide variety of quiz questions and brain teasers, from easy ones to slightly more difficult ones.
Some are quick enough to do in a short spare moment.
With brain-training quizzes, the value lies in the act of thinking itself, even if you don’t get the right answer—so give them a try!
- [Trick Quiz] Quiz Questions That Excite Everyone from Kids to Adults
- [Battle of Wits] Stimulate your intellectual curiosity! Quiz questions that get adults excited
- [Interesting] Collection of Math Quiz Problems
- [Challenging and Fun!] Quizzes & Riddles for Adults
- [For Elementary School Students] Recommended Riddle Collection
- A collection of challenging quizzes for adults [Difficult]
- Interesting riddles: a collection of simple and fun questions
- Mental Workout: Casual Challenge! Riddles for Adults
- [Interesting] Collection of Matchstick Quiz Problems
- Take on the challenge like a puzzle! A collection of logic quizzes that also work as brain teasers.
- Fun Quiz Questions That Will Liven Up the Office [2026]
- [Satisfying When Solved] Challenging Quizzes Recommended for Elementary School Students!
- Funny quizzes for middle school students. Quizzes that can liven up a middle school setting.
[Interesting] A collection of brain-teaser quiz questions. Let’s train your brain! (1–10)
trick question
Trick questions that were once a hot topic on quiz shows.
They don’t just test how much you know—they require flashes of insight, so flexible-minded kids are often better at them.
Some might make you think, “Isn’t that just sophistry?” but if you accept them, you might find they make sense.
Laughing at the oddball answers is part of the charm of these quizzes.
Matchstick Quiz
As a classic brain-training puzzle, matchstick quizzes are always fun.
The ones where you move a single stick to find the answer have stumped many people.
For the record, I’m not very good at them.
They range from easy to difficult, so if you train yourself, you might have something to brag about.
Shape Quiz
These types of figure problems often appear in job placement exams.
They’re quizzes that help develop not only logical thinking but also spatial awareness, and you’ll recognize them from IQ tests as well.
For the record, I’m terrible at these quizzes—every figure looks the same to me.
If you like shapes and drawings, you might be good at them.
If you’re especially proud of your brainpower, give them a try!
Arunashi quiz
In IQ test shows and the like, you often see “Aru-Nashi” quizzes (Yes/No puzzles).
Rather than asking whether something belongs, they’re really about figuring out the underlying rule.
Classic types include putting something inside a character or adding something before or after it, but there are many other varieties too—so have fun trying them out.
Some are extremely difficult!
Lateral thinking quizzes and logic quizzes
These are quizzes that train both lateral and logical thinking.
They aren’t solved by far-fetched methods; the problems are crafted so well that you’ll think “I see!” when you read the answers.
They’re considered relatively difficult even on quiz shows, so even a brainiac like you should be satisfied.
If you solved them right away, you might be a genius.