A quiz of fun trivia: bite-sized knowledge that leads to new insights.
This is a trivia quiz that could prompt you to pay attention to things that have become routine in daily life—things you do without question, almost on autopilot.
By focusing closely on what you’ve taken for granted and learning the reasons behind it, you may strengthen your ability to think and observe.
Precisely because these are things we rarely stop to consider, posing them as questions to people around you might spark lively discussions.
Once you realize that everyday life is full of mysteries, you may find each day more enjoyable.
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A quiz of interesting trivia: fun facts where you can discover new insights (1–10)
Which blood type is the most common among Japanese people?
- Type A
- Type B
- Blood type O
See the answer
Type A
In Japan, it is said that people with blood type A are the most common. Looking at the distribution of blood types in the country, type A accounts for about 40%, making it the largest proportion. There are also cultural practices and beliefs suggesting a link between blood type and personality, and in Japan, blood type personality assessments are often a common topic of conversation. However, while the association between blood type and personality is not scientifically established, the fact that many Japanese people have type A is an interesting statistic.
What is the most harvested fruit in Japan?
- Apple
- banana
- mandarin orange
See the answer
mandarin orange
The fruit with the highest yield in Japan is the mikan (mandarin orange). It is cultivated in various varieties, with Ehime and Wakayama prefectures serving as major production areas. Long familiar to the Japanese, mikans are notable not only for their fruit but also for the frequent use of their peels. In season from autumn to winter, mikans are loved by many for their soft, juicy sweetness.
What was the first thing Doraemon ate when he came to Nobita’s house?
- chocolate
- dorayaki
- rice cake (mochi)
See the answer
rice cake (mochi)
In the manga Doraemon, when the blue cat-shaped robot Doraemon came from the future to Nobita’s house, the first thing he ate was mochi (rice cake). The first episode is set during New Year’s, and there’s a scene where Doraemon arrives and eats the mochi he sees. Although dorayaki is famous as Doraemon’s favorite food, the first thing he actually ate upon his debut was mochi.
A fun trivia quiz: little-known facts that bring new insights (11–20)
Which side is the front of the 10-yen coin?
- The one without the era name
- The one with an era name
- Both are tables.
See the answer
The one without the era name
Legally, there is no designated front side. However, in the manufacturing process, a front side must be determined in advance, and in practice the side without the year is produced as the front. Depending on whether you prioritize the year and numerals or the design, your perception of which side is the front may differ.
What illnesses are less likely to be contracted in Antarctica?
- a cold
- suntan
- Frostbite
See the answer
a cold
In Antarctica, outside visitors are limited and there is very little movement of people, so viruses are rarely introduced. As a result, it is said that the likelihood of catching a cold is extremely low. Furthermore, hygiene management at Antarctic stations is rigorous, which keeps the risk of transmission among residents to a minimum.
How much time do we spend sleeping over the course of a lifetime?
- 5 years
- 10 years
- 20 years
See the answer
20 years
Considering the average lifespan and the average amount of sleep per day, it can be calculated that we spend over 20 years sleeping. While this may vary from person to person, the fact remains that we spend a long time on sleep. It’s a question that could prompt us to value sleep more.
Which animal has the highest blood pressure?
- whale
- giraffe
- Elephant
See the answer
giraffe
Giraffes have extremely long necks, and considerable pressure is needed to send blood through the neck to the brain. In fact, giraffes have powerful hearts, and their maximum blood pressure is said to be more than twice that of humans. This high blood pressure is necessary to keep pushing blood more than about two meters upward. It can be considered an evolutionary adaptation arising to maintain blood flow to the brain.