一流の常識力

Only true top-tier intellects know these problems. Test your knowledge of essential common sense and social etiquette, then discover your rating!

The ultimate rating app for everyone is finally here!

Achieve a Perfect No Miss to earn your super-first-class certification.

If you're confident, share your diagnostic results with the world!

◆ Sample Questions ◆

"Which is colder, the North Pole or the South Pole?"

"What year came before the Showa era?"

"What is the sum of the interior angles of a pentagon?"

We've assembled 200 questions on the basic knowledge any first-class person should know naturally.

Only a perfect score truly earns you the title "super first-class."

◆ How to Play ◆

1. Read each question carefully and tap the correct answer.

2. Press "Answer" to check if you're right.

3. If correct, move to the next question. If wrong, keep trying until you get it right.

After finishing all 50 questions in a series, your rank will be shown based on your number of first-attempt correct answers.

*1 Your results will not appear until every problem in the series is solved. Please note.