How old are you? A collection of problems to determine your IQ
IQ, which stands for Intelligence Quotient.
Since it’s often featured on TV quiz shows and the like, many of you have probably thought about your own IQ at some point.
In this article, we’ll present questions that can reveal your IQ.
These aren’t your typical quizzes—they all require one or even two clever twists!
An IQ of around 90–100 is average, around 120 is considered high, and surpassing 130 reaches the realm of genius.
Be sure to take on the challenges and check your IQ!
- [Genius if you can solve it?] Insight and intuition: a challenging IQ quiz
- [Personality Test] Are You a Smart Person? A Thorough Diagnosis of Your Abilities and Talents!
- How old are you? A roundup of psychological tests to find your mental age
- Genius if you can solve it? Super-difficult Quiz Collection
- [Your Hidden Abilities] A Psychological Test to Measure Your Genius Level
- [Funny] Mean! 10-times Quiz/Question Collection
- [Logic Quiz] Flexible Thinking and Creativity Are Key! From Classics to Tough Challenges, All in One Go
- [Battle of Wits] Stimulate your intellectual curiosity! Quiz questions that get adults excited
- [Challenging] General Knowledge Quiz Compilation: Difficult and Interesting Multiple-Choice Questions (3 Options)
- Do you get tripped up too? A fun roundup of 10-time quiz questions
- How Much Do You Know? A Quiz Collection About Me
- Deep psychological test decoded through anime
- [Interesting] Collection of Math Quiz Problems
How old are you? A collection of questions to determine your IQ (1–10)
An IQ test to measure your abilities

Many of you have probably wondered, “I wonder what my IQ is.” It’s often featured on TV shows, too.
Here’s a recommended quiz for those curious about their IQ! Just answer 9 questions and you’ll find out your IQ.
You have 10 seconds to think for each one; if you can’t answer right away, it’s fine to pause.
It’s quite a challenging quiz, but if you get them right, your IQ is over 120! An IQ of 120 is about the average for University of Tokyo students, so if you can solve the problems, you’re very capable.
Give it a try!
An ultra-difficult IQ test that only one person in the grade can solve

IQ tests are popular on TV shows, aren’t they? If you’d like to try even more types of IQ tests, this is for you! You’ll be given five IQ questions that have been trending on social media.
There are only five questions, but they’re notoriously difficult—only about 1% of people can get them all right.
For example, there are problems like “Which glass will fill up first?” where you need to study an image carefully to answer.
These questions test creativity and problem-solving skills rather than academic knowledge.
If you’re interested, give it a try!
IQ 140 Required! An IQ Problem Only Geniuses Can Solve

Many people are likely curious about their IQ.
Here’s a quiz recommended for those folks! This quiz presents three tough questions that supposedly only people with an IQ of 130 or higher can answer.
It also explains MENSA, the so-called secret organization that only the top 2% by IQ can join—often spoken of as an urban legend.
If you get these questions right, you might even become a member of the secret organization! It’s also fun to try it together when you gather with friends.
How old are you? A collection of questions to gauge your IQ (11–20)
20-question IQ test to make you smarter

I think everyone has felt the desire to be seen as smart by those around them.
It seems a perfect IQ for showcasing such intelligence has been identified, and the idea here is to build on that and become even smarter.
What matters most are flashes of insight and flexible thinking—be mindful of which parts of a problem you focus on and how you expand your thoughts.
More important than knowing the answer is understanding the approach to solving it, and carefully loosening up thinking patterns that tend to become rigid.
Genius if you can solve it! IQ Test

Have you ever wanted to know your IQ? Here’s a quiz I recommend for those who do! These are questions designed for IQs of 120–150.
Since the average IQ of University of Tokyo students is said to be 120, you can bet it’s very difficult.
Problems involving letters and numbers appear one after another, and the answer for each question is shown right after.
You can also pause on a question to think it over.
They’re quite challenging—solving them would mark you as a genius—so if you want to gauge your IQ, give it a try!
Geometric IQ Quiz

Many people are probably interested in tests that can reveal your IQ.
Various IQ quiz themes are often featured on TV programs, too.
For those who enjoy IQ quizzes, here’s a unique one to try! This IQ quiz consists entirely of shape-based puzzles.
For each of the 10 questions, choose your answer from four options.
The solution for each question appears right after it, so we recommend pausing the video while you think.
It’s also great brain exercise, so why not give it a try in your spare time?
Get all questions right in 5 minutes and your IQ is 150!? IQ quiz

People said to have high IQs possess not only flexible thinking but also a quick sense of insight.
This is an IQ test that emphasizes speed to a solution and challenges soft, flexible thinking.
It asks you to figure out what belongs in the open space based on surrounding elements, so the ability to organize conditions is also important.
The more you overthink, the further you may drift from the correct answer, so take on the challenge within the time limit to test your flexible thinking and rapid flashes of insight.


