Also great for brain training! A flash of intuition is the key to solving these insight quizzes.
Flash-of-inspiration quizzes that test quick thinking and intuition are used in various settings as a way to activate brain function.
Some of you may be looking for quizzes to hold at events and recreational activities in schools, companies, or senior facilities.
In this article, we’ve handpicked a selection of quizzes that people of all ages can enjoy.
They range from riddle-style questions that challenge your reasoning skills to unique problems that make clever use of puns.
Give these flash-of-inspiration quizzes a try—figuring out the answers will leave your mind feeling refreshed.
- [Genius if you can solve it?] Insight and intuition: a challenging IQ quiz
- [Battle of Wits] Stimulate your intellectual curiosity! Quiz questions that get adults excited
- [Interesting] A collection of brain teaser quiz questions. Let's train your brain!
- Let's get excited with a two-choice quiz that everyone—from kids to adults—can enjoy!
- [Brain Training] Difficult Riddles That Even Adults Struggle With
- [Interesting] Compilation of Trivia Quiz Questions
- [Logic Quiz] Flexible Thinking and Creativity Are Key! From Classics to Tough Challenges, All in One Go
- Take on the challenge like a puzzle! A collection of logic quizzes that also work as brain teasers.
- [Satisfying When Solved] Challenging Quizzes Recommended for Elementary School Students!
- Mental Workout: Casual Challenge! Riddles for Adults
- Let's take on a four-choice quiz that everyone can enjoy together!
- So tricky you’ll be fooled! A collection of trick riddles that both adults and kids can enjoy.
- Do you get tripped up too? A fun roundup of 10-time quiz questions
Also great for brain training! A flash of insight quizzes (1–10) where intuition is the key to solving the problems
How many diamonds are depicted on the ace of diamonds playing card?
See the answer
three
There are three diamonds in total: one in the center of the card and one each at the top and bottom. It’s a trick question that makes you want to answer “two” if you only count the diamonds at the top and bottom of a playing card. If you’re given paper and a pen, it’s a good idea to actually draw a playing card.
When an eagle ate something, it turned into a lion. What on earth did it eat?
See the answer
wagashi (traditional Japanese confectionery)
Since when you eat wagashi (traditional Japanese sweets), the “wa” becomes “shi,” it turns into “washi,” and then “shishi.” Because “shishi” can mean “lion,” the key is whether you can infer the answer from that. It’s a question that tests your reasoning and creativity.
How far do truck drivers drive on the highway in a day?
See the answer
Truck drivers cannot drive on the highway.
It’s not the driver but the truck that runs on the highway. Since there’s no phrase like “a driver riding on a truck,” the key is to read the question carefully and arrive at the correct answer.
Also great for brain training! Insight quizzes (11–20) where intuition is the key to solving the problems
What animal seems to be spouting water?
See the answer
horse
The tube used when spraying water is called a hose. Since 'horse' in English sounds like 'hose,' they are the same word, so the correct answer is 'horse.'
What are the letters of the alphabet that follow NUTUTMUHSTI?
See the answer
I
These romanized letters are arranged in the order of the Chinese zodiac. If you think about the initial letters of the zodiac animals, the 12th one is the I of INOSHISHI (boar). The trick is to read the hint from the number of letters in the alphabet.
What comes after the first term?
See the answer
summer vacation
This isn’t asking “What’s the term after the first term?”—it’s a riddle that expects the realization that after the first term comes summer vacation. If you picture the end of the first term in school life, you’ll notice that the second term doesn’t start immediately; summer break comes in between.
On a certain island, there are six animals. What are these animals?
See the answer
polar bear
If you remove both ends of the word for “polar bear,” it becomes “island,” and the two letters in between mean “six.” Using the keywords “island” and “animal,” the trick to solving the puzzle is to think of animals whose names contain the syllable “shima.”


