[For Seniors] Recommended for Brain Training! Ultra-Difficult Quizzes and Riddles
Quizzes are an easy activity to join and are one form of recreation that can help stimulate the brain.
Many senior and welfare facilities probably incorporate them as well, don’t they?
One of the great things about quizzes is that you can enjoy learning new facts and gaining new knowledge.
So this time, we’ve prepared a “Super-Difficult Quiz for Seniors” that’s a step up in difficulty from the usual quizzes!
In addition to quizzes, we’ve also gathered tough riddles and kanji problems.
These quizzes are on the challenging side, but solving them should give a real sense of accomplishment.
If the answers don’t come easily, try offering hints and have participants think their way to the solution.
Please make good use of the “Super-Difficult Quiz” and enjoy a fun time!
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[For Seniors] Recommended for Brain Training! Ultra-Difficult Quizzes and Riddles (21–30)
A witty wordplay using “shō” and “jō”

Let’s solve a riddle that looks like an official-style problem! It’s a wordplay puzzle using “shou” and “jou.” The display shows “shou × 2” and “jou ÷ 2.” The hints are that it suggests a bustling crowd, and that “shou” is doubled while “jou” is halved.
The answer is “shoubai hanjou,” meaning “prosperous business.” It makes sense if you think of it as “shou” multiplied and “jou” halved—“shou-bai” and “han-jou.” It’s a perfect brain teaser with clever wordplay, and once you get it, it’s quite satisfying.
Give it a try!
I made one sheet of paper into ten without tearing or cutting it. How did I do it?
It’s a simple riddle whose answer you can figure out by recalling everyday actions.
I turned one piece of paper into ten without tearing or cutting it.
How did I do it? The hint is something related to money.
Think of a 10,000-yen bill or a 1,000-yen bill.
The answer is “exchange.” For example, you might exchange one 10,000-yen bill for ten 1,000-yen bills in various situations.
The number of pieces increases without tearing or cutting, right? It’s a simple yet humorous riddle.
[For Seniors] Great for Brain Training! Ultra-Difficult Quizzes and Riddles (31–40)
What animal is represented by “chi-tsu-te-to?”
Next, let me share a riddle about animals.
What animal is represented by “chi-tsu-te-to”? Pay attention to the sequence “chi-tsu-te-to.” If you add one character, it should follow the standard gojūon order, right? The answer is “tanuki” (raccoon dog).
The “ta” is missing from the ta-row sequence “ta-chi-tsu-te-to,” so the animal is “tanuki.” It feels satisfying once you get it, doesn’t it? Tanuki are small animals with a cute appearance and have long been familiar figures in folktales and old stories.
Some of you may have even seen a wild tanuki before.
What is something you can’t write with your hands, but you can put on with your feet?
Let’s try a riddle about actions.
What is something you can’t “kaku” with your hands but can “kaku” with your feet? Many people might imagine letters, but the key is that it’s about an action! The answer is sitting cross-legged (agura).
In Japanese, we say “agura o kaku” to mean sitting comfortably with legs crossed.
You’re not writing letters or drawing pictures, but we still use the verb “kaku,” which is part of the fun of Japanese.
It’s a playful riddle where the same-sounding word changes meaning depending on how you interpret it.
There are two types of soy sauce: light (usukuchi) and dark (koikuchi). Which one has less salt?
See the answer
light soy sauce
Just from the names, “usukuchi” (light) soy sauce sounds like it would be lower in salt, doesn’t it? However, usukuchi soy sauce actually has a higher salt content. The reason lies in the difference in fermentation time during production. Usukuchi is fermented for a shorter period, which makes it more prone to deterioration. Increasing the salt content helps prevent that deterioration.
In conclusion
It was an “ultra-difficult quiz” aimed at seniors.
Many of the questions are solved using flashes of insight or knowledge you already have, so it’s great brain exercise.
Staff can offer hints, and seniors can share stories or trivia related to the answers—have fun as you work through it together!


