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Recommended quizzes

How many can you solve? Brain-flexing math riddle quiz

Math is truly fascinating! It’s not just about calculation drills—there are rules and puzzles you can use in everyday life hidden within it.

Here, we’ve gathered math quizzes that nurture children’s thinking skills and number-based riddles that spark inspiration, all designed to make learning fun.

From intuitive, illustration-based questions to logical problems where you fill in the blanks with numbers, we’ll share the full appeal of math.

There might even be some problems that adults surprisingly can’t solve.

Gather the whole family and dive in together with excitement!

How many can you solve? Brain-flexing math riddle quiz (11–20)

Arithmetic Quiz

[Genius if you can solve it in elementary school] Get every question right and you’re a math master!
Arithmetic Quiz

If an elementary school student can solve these, they’re a genius! Here are some ideas for a math quiz.

The quiz contains 50 questions that test your math skills.

It’s perfect for people who love math or are good at calculation problems.

Since there are 50 questions, you might want to take breaks or refresh yourself along the way.

There are four difficulty levels in total, with questions tailored to each level.

For example, there’s a question like “What is the answer to 3 + 4?” with four choices.

It’s also a good idea to prepare a notebook and pen before you start.

Math Quiz: What are the ages of the five siblings?

[Arithmetic Quiz] Junior high entrance exam questions look easy for adults but are actually hard! “What are the ages of the five siblings?” brain plus*
Math Quiz: What are the ages of the five siblings?

High difficulty! Here’s a puzzle to determine the ages of five siblings.

In this quiz, you’ll figure out each of their ages.

The only information given is the sums of the ages of pairs of siblings.

There are 10 sums in total, each representing the sum of two different siblings’ ages.

Using these, let’s uncover how old each sibling is.

The key to solving this problem is that the eldest is older than the second eldest, and the second eldest is older than the third.

Keep that in mind as you set up equations and plug in the numbers.

Arithmetic Puzzle

[Arithmetic Quiz] Fill the squares with numbers 1–9! Three classic arithmetic puzzles, plus a bonus question [Math Puzzle]
Arithmetic Puzzle

Math puzzles are packed with appeal that goes beyond simple equations.

For example, there are puzzles where you place the numbers 1 through 9 in a square grid so that each row and column forms a valid equation.

There are also quizzes where you wrack your brain to make the totals within designated boxes all match the same number.

They’re simple yet stimulating for the mind, and the sense of accomplishment when you arrive at the answer is exceptional.

Because you can enjoy them like solving mysteries, even children who struggle with math will be naturally drawn in and have their curiosity piqued.

These math puzzles not only cultivate thinking skills but also enhance everyday learning, making them a highly recommended resource brimming with fun!

[Challenging Math Quiz] What is Lisa’s score?

[Challenging Math Quiz] An elementary schooler can solve it but adults can’t: the math problem “What is Lisa’s score?” (Brain training from a junior high school entrance exam)
[Challenging Math Quiz] What is Lisa's score?

This is a quiz where four people—Taro, Jiro, Hanako, and Lisa—answer a 10-question test.

Using the choices each person selected for each question and the scores of the three people other than Lisa, we deduce Lisa’s score.

It’s a constraint-organization problem where you consider where answers match or differ and how the scores change accordingly.

You start by examining cases where the scores are the same but the answers differ, and, including hypotheses, think through which parts are earning points.

By sequentially deriving which questions can be said to be certainly correct from the conditions, you ultimately apply those conclusions to Lisa’s answers.

[Arithmetic Puzzle] 3 Maze Problems in Total

[Arithmetic Puzzles] Three maze problems said to be solved by smart elementary school students! Includes explanations [Math Quiz]
[Arithmetic Puzzle] 3 Maze Problems in Total

This is a math quiz recommended for elementary school students who love mazes! The problem works like a maze from start to goal, and you have to reach the goal—or guess where the goal is—while following set rules such as “You can’t use the same path twice” and “Each door can only be opened once.” Unlike problems with letters or numbers, you can progress visually while thinking it through, so it’s great fun to get together with a few friends and solve it as a group! Read the rules carefully and figure out the correct route!