Aim for a perfect score! A three-choice common knowledge quiz that deepens your understanding

Keyboard playerSAKI
I’ve been playing the Electone since I was six, mainly performing Disney music, anime songs, and music from dramas and films. I post performance videos on YouTube and social media, and I also give concerts. Building on my Electone experience, I took up synthesizer and piano during my student years and performed at school-sponsored events. As a writer, I’ve covered not only music-related topics but a wide range of genres, so I hope to draw on my experience to deliver articles that make readers think, “I want to try that!” or “I want to listen to that!”

We’re giving you a multiple-choice common-sense quiz with three options!

It’s not just about what you learned at school—we’ve turned various bits of everyday knowledge into quiz questions.

We cover a wide range, from Japanese culture and history to topics about the world.

Even if you think you know something, when it pops up suddenly as a quiz, you might find yourself thinking, “Huh? What was it again?”

If you can’t recall it even though you know it, if you’ve forgotten it, or if you never knew it in the first place, let this quiz be your chance to brush up and deepen your knowledge.

Aim for a perfect score! A 3-choice general knowledge quiz that deepens your knowledge (31–40)

About how many times does a human heart beat in a day?

about ten thousand times
about 100,000 times
About one million times

See the answer

about 100,000 times

A human heart beats about 70 times per minute at rest. Converting this to a daily figure, 70 beats × 60 minutes × 24 hours comes to roughly 100,000 beats. The heart works without rest, delivering oxygen and nutrients throughout the body with this vast number of beats. Take good care of your heart to support a healthy life.

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In conclusion

We’ve given you a variety of general-knowledge quizzes—how many did you get right? For seniors, they’re great as brain training, and for children, they’re recommended as a way to absorb new knowledge.

Try tackling the quizzes together with family or friends and have fun!