A collection of challenging quizzes for adults [Difficult]
Feeling the urge to tackle a brain-busting puzzle that seems impossible—“No one could solve this!”—might be a uniquely adult kind of curiosity.
But why do puzzles and riddles that hinge on sudden insight make your heart race? It’s because your brain is seeking that moment of activation.
This time, we’ve handpicked challenging problems for adults that test flexible thinking and ideas unconstrained by common sense.
Don’t overthink them—try looking from a slightly different angle.
The “aha!” moment is surely waiting for you.
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Compilation of High-Difficulty Puzzles, Patterns, and Codebreaking Quizzes (1–10)
Pattern Quiz
This is a set of problems where you deduce the pattern from a sequence of numbers and determine what goes in the ‘?’.
Although the numbers may seem randomly arranged at first glance, they are actually ordered according to a specific rule.
Take your time and look at them calmly.
Be careful not to overthink it and give yourself a headache.
Kanji Puzzle Quiz
Let’s challenge ourselves by putting the characters together in our heads! Here are some kanji puzzle quiz ideas.
These kanji puzzle ideas are perfect for people who are good at kanji or who love kanji.
The kanji featured are those learned in the second grade of elementary school, corresponding to Level 9 of the Kanji Kentei.
There are three levels, and with a time limit set, it really gets your heart racing.
You might even find yourself pausing the video to think because it’s so frustrating when you can’t answer! The questions are unique, so be sure to give them a try.
[High Difficulty] Puzzle-like Riddle Problem
![[High Difficulty] Puzzle-like Riddle Problem](https://i.ytimg.com/vi/NMMbAXV7e2I/sddefault.jpg)
Introducing ideas for high-difficulty, puzzle-like riddle challenges.
Even those who regularly tackle riddle games will find these problems tough.
It seems you’ll need trivia and general knowledge to solve them.
The video also includes an illustrated explanation segment, so if you just can’t crack a riddle, it’s a good idea to check that section.
The time limit is 90 seconds, and the entire video runs for five and a half minutes—perfect for filling small breaks.
If you’re confident or simply want to give it a try, jump in and take on the challenge!
Emoji Quiz
Let’s answer what character is being represented! Here are some emoji quiz ideas.
They’re easy, casual quizzes you can try in spare moments or during your commute.
However, the difficulty is high, so many people might find them quite challenging.
There are five questions in total, and each one has a time limit, so you’ll be on the edge of your seat.
If you prefer to think things through slowly, pause the video and take it at your own pace.
Give it a try!
[For Advanced Learners] Hiragana Rearrangement Quiz
![[For Advanced Learners] Hiragana Rearrangement Quiz](https://i.ytimg.com/vi/QvlAT0r2n8E/sddefault.jpg)
It’s an easy-to-understand quiz where you rearrange the given hiragana to complete a word.
The more characters there are, the harder it gets, so start with a small number of characters and gradually move on to more complex words.
Your choice of answers also matters; words that are strongly associated with katakana can feel harder to rearrange.
With options like setting a time limit and adjusting word complexity, it’s a format that can be enjoyed under various conditions and difficulty levels.
Mirroring Quiz
This is a quiz where you guess what mirror-reversed letters say.
Starting with hiragana and gradually mixing in katakana and kanji makes it increasingly confusing.
If you make it a team competition and have people who don’t know each other work together, it quickly brings them closer.
A quiz of “Aru-Nashi” for advanced players
It’s a quiz where each item is divided into two categories: “has” and “doesn’t have,” and you think about the commonalities and characteristics of the items.
Try various approaches to find the answer, such as imagining how the items look, converting them to hiragana and examining the letters, or adding different characters.
It’s also important that items with similar images are placed side by side in the list, and this closeness in meaning actually makes it harder to arrive at the idea of looking at the letters.
When solving the puzzle, focus only on the items you’re asked to find the commonality for.
It’s best to think it through without being distracted by the others.