Energize your brain with a multiple-choice quiz everyone can enjoy! This time, we’re bringing you a collection of trivia questions you’ll be itching to share with others.
We’ve gathered problems from a wide range of fields, from surprising facts hidden in our daily lives to handy tidbits worth knowing.
For example, questions about the human sense of taste or whether the Arctic or Antarctic is colder—plenty that can be solved with the knowledge and common sense many seniors possess.
The three-choice format also makes it easy to join in.
Why not take on a quiz that expands your knowledge while having fun?
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General knowledge and common-sense questions (1–10)
What is the origin of the term “silver” when used to refer to elderly people?
- silver tooth
- Priority seat
- gray hair
See the answer
Priority seat
On Respect for the Aged Day in 1973, JR created priority seats for elderly passengers. The seats were colored silver—partly because silver fabric was readily available—and from there, the association of “silver = elderly” spread nationwide.
What percentage of the Earth is covered by the ocean?
- 30%
- 50%
- 70%
See the answer
70%
The world is vast, but isn’t it surprising that 70% of its surface is ocean? Even knowing the oceans are extensive, it’s hard to grasp; the sea is 2.5 times larger than the land. Thinking about it that way makes Japan feel very small, doesn’t it?
Which fruit has the highest harvest yield in Japan?
- Apple
- None
- mandarin orange
See the answer
mandarin orange
We harvest about 75 tons of mandarins annually. Apples come in second, and the third place varies significantly depending on the year. Mandarins, which can be peeled by hand and are easy for both children and adults to eat, are a classic winter fruit, aren’t they?
There is something in Ibaraki Prefecture that is the largest in Japan. What is it?
- city
- Great Buddha
- temple
See the answer
Great Buddha
Located in Ibaraki Prefecture, the Ushiku Daibutsu is a bronze standing statue that stands 120 meters tall. It is the largest not only in Japan but also in the world, and it has been recognized by Guinness World Records. The interior of the statue is divided into five floors, which are open to visitors. It’s said that each floor presents a fantastical world.
What is the most common surname in Japan?
- Mr./Ms. Tanaka
- Mr./Ms. Sato
- Mr./Ms. Suzuki
See the answer
Mr./Ms. Sato
First place is Mr./Ms. Sato, second is Mr./Ms. Suzuki, and third is Mr./Ms. Takahashi. I thought Mr./Ms. Tanaka, often used as a sample name, would be the most common, but Tanaka came in fourth.
What do you call soy sauce at a sushi restaurant?
- Midori
- Kuro
- Murasaki
See the answer
Murasaki
It is said that this name dates back to the Edo period, when soy sauce was thinner than it is now and had a reddish tint that made it appear purple. Separately, it is also said to carry the meaning that purple was a symbol of nobility and, since soy sauce was expensive at the time, it was considered a precious item.
Where on the body is the skin the thinnest?
- forehead
- upper arm
- eyelid
See the answer
eyelid
The thinnest skin on the body is on the eyelids. Like the eyelids, the earlobes, the backs of the hands, and the tops of the feet also have thin skin compared to other parts of the body. Conversely, the thickest skin is on the heels.


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