[Challenging and Fun!] Quizzes & Riddles for Adults
We’re introducing riddles and fun quizzes for adults!
When you hear “riddles” and “quiz questions,” you might think they’re for kids, but these days there are quiz shows that adults can enjoy too, making them fun for all ages.
In this article, we’ve put together some slightly challenging riddles and quizzes for adults.
They’re especially recommended for grown-ups, whose thinking can sometimes get a bit rigid!
Try them as brain training, too.
You might be surprised by how difficult they are!
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[Challenging and Fun!] Quizzes & Riddles for Adults (31–40)
Riddles for adults! Can you solve them all? 10 questions in total.
Many people probably loved riddles when they were kids.
For those who realize they’ve stopped solving riddles as adults, we recommend these riddles for grown-ups.
Since they’re designed for adults, they’re more challenging than regular riddles and engage your brain more, making them great for mental training.
The 30-second thinking time also seems helpful for brain workouts.
By constantly tackling riddles, you’ll keep your mind flexible—and that could have a positive impact on your work, too.
Feel Refreshed When You Solve Them! 10 Riddles
Recommended for kids and adults! Here are 10 riddle ideas that will refresh you when you solve them.
Riddles are easier to crack when you loosen up your thinking and approach them flexibly, right? This time, let’s take on riddles that feel satisfying to solve.
For example, there’s a question like: “It’s gas, but what kind of gas comes out after using the toilet?” Hints are available, but each question has a 10-second time limit! Give them a try!
[Cipher Quiz] Decode the word hidden in the cipher!
![[Cipher Quiz] Decode the word hidden in the cipher!](https://i.ytimg.com/vi/VHGQUHm06uc/hqdefault.jpg)
These are all problems that make you go “Ah, I see!”—from light ones to trickier ones that require a bit of thought, and they’re fun to tackle.
If you prefer deciphering visuals over reading text to arrive at the correct answer, this is for you.
Give it a try!
What is something you can see but can’t touch?
Something you can see but can’t touch… Huh? A ghost? That might be the kind of answer you’d think of, but that’s not it.
Don’t worry, it’s not a scary question—feel free to give it a try.
The answer to this riddle is something unique to elementary schoolers, or rather, it even comes up in lower grades’ classes.
If you have a flash of insight, even a first-grader could solve it.
The hint: it’s something you can usually find in a classroom or a room.
Try solving it while thinking, “What is it that I’m always looking at?” The answer is “time.” You can see it, but since it isn’t a physical object like a clock, you can’t touch it—that’s the trick.
[Riddles] Brain-teasing fun questions! 10 in total!
![[Riddles] Brain-teasing fun questions! 10 in total!](https://i.ytimg.com/vi/sry6ocXhFP0/sddefault.jpg)
From the moment you start the video until it ends, this is a set of problems that’s quite challenging unless you concentrate intensely.
Some of you may be surprised by correct answers that go beyond your imagination, thinking, “That was the key point!” Take your time, focus, and clear your mind.
Give it a try!
‘Aha!’ Experience: Brain Training Video Quiz
This is a quiz where you look at photos that gradually change in one area and figure out what has changed.
Only a tiny part of the photo changes, so think about where to focus your eyes as you work your way toward the answer.
Some people are good at scanning the whole image, while others do better by moving their gaze in small steps, so the key is to use your own strategy to spot the changes.
Enjoy the sense of accomplishment when you notice the difference, and give your brain a solid workout.
Amazing if you can read it! Three readings for a single kanji
Although it may seem like there are many kanji we see in everyday life, the ones we actually encounter are somewhat limited, and there are in fact kanji that we rarely have the chance to see.
This is a quiz that focuses on those less commonly seen kanji and asks you to think about how they are read.
Each kanji’s reading is limited to three kana characters, so try to expand your imagination based on the components and overall impression of the character.
Sometimes you can’t tell just by looking at the kanji, so it’s also recommended to reveal the initial letter of the reading or have participants infer the reading from the meaning.
Riddles: Advanced Level
The words “nazo-nazo” (riddles) and “quiz” are used with similar meanings.
I tend to think of quizzes as knowledge questions like “Who founded the Tokugawa shogunate?” and riddles as insight-based ones like “What’s something you can’t cut no matter how much you cut it?” How do you draw the line between them? When it comes to insight-based riddles—especially at an advanced level—the difficulty can be sky-high.
If you’re confident in your riddle-solving skills, give it a try! People who love books or newspapers and are strong with print might have an advantage… or maybe not—that’s what makes it fun!
Riddle Trick Quiz
Trick questions are hard to solve precisely because you can’t answer them with just knowledge or common sense.
But that’s what makes them a fun brain workout and great for getting everyone excited! So this time, we’re introducing some “trick riddle quizzes.” Some of these are a bit mean-spirited, with answers that make you go, “Wait, that counts?” so be careful.
Even if you’re sure you’ve found the right answer, try looking at it from another angle.
The answer you’re certain can’t be right might actually be the correct one.
Ultra-difficult trick quiz
Are you bad at trick questions? I couldn’t even get the classic one—“Which is heavier, 1 kg of iron or 1 kg of cotton?”—I just kept groaning and never reached the right answer.
I’m the type who overthinks and self-destructs, assuming there must be some hidden twist just because it’s presented as a question.
I can’t handle normal trick questions, so if they’re labeled “super hard,” then… As for those tougher trick questions, the rising YouTuber Chonmage Kozou—who suddenly appeared with the greeting “Hikiniku desu!”—is enjoying them too.
Elementary schoolers who don’t have much time, give them a try!