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Recommended quizzes

[Challenging] A collection of brain-training riddles we want women to try

We run into difficult problems in our everyday lives.

They can be quite a headache, right? But don’t you ever feel like taking on those kinds of obstacles on a whim? Whether it’s because you’re craving a little excitement or just blowing off some steam varies from person to person, but here, we’re featuring riddles that are popular among women.

If you’re curious, take a look!

Challenging Brain-Training Riddles for Women (21–30)

General Knowledge Quiz

50-question general knowledge quiz! 🎯 Can you answer them all? 🤔🔥
General Knowledge Quiz

There are 11 questions on general knowledge that test your manners as a working adult.

The questions mainly cover etiquette and language use in business settings and at ceremonial occasions such as weddings and funerals, but there may be many you can’t answer when put on the spot.

Japanese business rules are so complicated they can make your head spin…

A collection of riddles with a 33% correct answer rate

[50,000 yen if you succeed] I gave my genius Sophia University student younger sister a trick quiz that 99% of people get wrong… #shorts
A collection of riddles with a 33% correct answer rate

Challenging but fun! Want to try a riddle with a 33% correct-answer rate? Just thinking it through is a great workout for your brain.

There are 12 adult-oriented riddles, perfect for a quick change of pace.

The best thing about riddles is that they’re enjoyable even if you don’t get the answer.

They’re recommended if you’re looking to relieve stress or add some excitement.

It’s also wonderful to share hints and work together to find the answers.

How about tackling some tough questions and clearing your mind?

Rule problem

[Rule Quiz] What does the ultra-difficult “Kan hi KaKaKaKaKa A Ka Kan” represent? [Shimofuri Myojo]
Rule problem

A quiz of seven questions where you read the hidden rules and find the answers.

The thinking time is set to a relatively long one minute because many of the problems require careful thought.

A hint is also given around the 30-second mark, so try to search for the answer from different angles.

You might find this quiz easier if you have a notepad handy.

Kanji Riddles

[Kanji Riddles] 10 questions in total! These are riddles where you answer with a single kanji character!
Kanji Riddles

There are three slightly tricky riddles about kanji.

These aren’t problems you can solve just by being able to write or read kanji.

By the way, if you can solve all three, your IQ is supposedly 150! Can you get them all right? If you get stuck thinking they’re all insects, it can be hard to break free, but the moment you hear the answers you’ll think, “Ah, that’s what it is,” and it will make sense.

Staff should draw out the answers by giving timely hints that match the season, like, “It’s almost the season when cicadas start to sing,” and so on.

The more serious a person is, the more they tend to get fixated on the characters in front of them.

You might discover an unexpected talent among your group—someone surprising might breeze right through it!

Trivia Quiz

Q. What is the full/formal name of the vehicle “bus”? [100 Trivia Questions] / Kiku Trivia
Trivia Quiz

A total of 14 quiz questions about trivia that seems familiar but is surprisingly little known.

Even if you don’t know the answers, these quizzes about everyday things are all interesting enough to make you go “Wow!” If you remember the answers, you might be able to show off your knowledge to your family and friends.

difficult riddle

Challenge 45 tricky riddles! Refreshing brain training when you solve them
difficult riddle

There are 18 high-level riddles for adults.

They’re a bit tricky, and the more you think about them, the harder they get.

Rely on your flashes of insight and give it your best! They also seem great as a quick mental workout when you want to refresh your mind.

Brain Teaser and Mental Training Problem

Proverb Quiz: Fill-in-the-Blank Brain Training! Complete the sayings! 10 easy questions perfect for seniors, Vol. 20
Brain Teaser and Mental Training Problem

There are five brain-training questions that seem like good mental exercises.

They look simple but are actually hard to solve—just tricky enough to make you itch to figure them out.

Try them in the morning when your brain isn’t fully awake yet, and they might help get it going.

They might even leave you feeling refreshed!