[For Elementary School Students] Recommended Riddle Collection
Puzzle-solving questions, which are perfect for training children’s thinking and creativity, are presented in a variety of situations.
Some of you may be looking for problems that beginners or elementary school students can tackle casually.
In this article, we’ve selected puzzle-solving questions for elementary school students.
You can enjoy a variety of puzzles, such as ones where you infer answers from illustrations or text, and ones themed around escape games.
Give these puzzles a try—they’re fun and also connect to learning.
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- Simple! A quiz for kids. Let’s develop their thinking skills!
[For Elementary School Students] Recommended Riddle Collection (21–30)
Matchstick puzzle: Move one stick to make it half.

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If you move the bottom matchstick of the 0 to below the space between the 1 and 0 and change its orientation, it becomes a “5.”
Because it’s half of ten, I can at least think to somehow make the shape of a “5,” but how should I move it? There’s no restriction saying “you mustn’t change the orientation,” so the shift in thinking to “let’s try changing the orientation!” is the key to solving the problem. Still, it’s a really well-crafted puzzle. I’d love to pose it to friends in my class who enjoy quizzes.
Matchstick puzzle: Move 2 sticks to change the direction of the goldfish.

See the answer
Move the two sticks at the bottom right to make the goldfish face upward.
When we see the phrase “change direction,” we tend to assume it means “turn 180 degrees”—right to left, up to down, and so on. If someone said “either up or down is fine” for this problem, it would click right away, wouldn’t it? Still, it’s kind of curious that with just this many matchsticks, the figure can look like a goldfish.
A riddle quiz that looks easy but is extremely difficult

Even simple quizzes can sometimes require deep thinking and reasoning skills.
Let’s look at the illustrations to understand what the questions are asking and think about the answers.
Once you figure out the answer, try explaining the correct solution in your own words—this helps you understand the quiz you worked on even better.
This particular quiz might be a strong suit for upper elementary school children.
If adults think it through together with them, it could create a sense of unity and make the quiz even more enjoyable.
A riddle quiz that kids can solve more easily

Children have strong intuition and are quick to notice even small changes, don’t they? In this riddle quiz that kids tend to solve more easily, you look at numbers and illustrations, observe carefully, and work out the answer.
Let’s use our flashes of insight to think about what the answer could be.
Getting the right answer is important, but the process of reaching it matters too.
By adjusting the quiz to suit a child’s age, it might spark greater interest and curiosity.
An elementary school problem that even University of Tokyo students couldn’t solve

Even University of Tokyo students have sometimes failed to solve these, yet elementary schoolers have! Here we introduce quizzes that look difficult but can actually be solved if you think flexibly.
There are eight questions in total.
If you change your perspective, they’re all quite simple, so they’re recommended even for elementary school students.
Rather than strict logical reasoning, most of these problems call for a shift in thinking—more like “arithmetic.” In other words, they require creative thinking.
Why not try tackling them together—kids and adults—and have fun getting excited over them?



