Take on the challenge like a puzzle! A collection of logic quizzes that also work as brain teasers.
A set of logic riddles that let you tackle problems with the mindset of a master detective.
Enjoy quizzes that appeal to all ages, from children to adults!
Many of the questions aren’t easy to solve by just reading the text as-is—you’ll often need a flash of insight and creative thinking.
Thinking about the precise meanings of words or jotting things down on paper or a board may lead you to the correct answer.
There are plenty of humorous questions too, so they’re great for brain exercises or recreational activities.
Give them a try—from casual, easy puzzles to more difficult challenges!
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Challenge yourself like a puzzle! A collection of logic riddles that also train your brain (11–20)
A woman got into an elevator to go to the 13th floor but got off on the 7th. It wasn’t because she had business on the 7th floor, and the elevator was working fine. So why did she get off the elevator?
See the answer
Because the woman was a child
Because the elevator buttons were only installed vertically, they were out of reach for a child’s height. It’s a logic puzzle where the key is to imagine being in the elevator and notice the situation in which you would have to get off.
A cryptographic quiz derived from nine katakana
A quiz that tests puzzle-solving and flashes of insight, using katakana arranged in a 3×3 grid as hints.
Letters that appear unrelated at first can reveal new meanings by changing their order, placement, or reading.
You’re encouraged to think freely—look for katakana that function as parts of words, try reading vertically or diagonally, and more.
Each solve brings an “aha!” moment, and the mechanism nurtures both imagination and logical thinking.
Those small realizations that become big breakthroughs will spark adult curiosity and make great conversation starters.
Cipher & Pattern Quiz
This is a cipher quiz where you find a pattern to arrive at the answer.
At first glance, it may look like a meaningless string of letters or formulas, but try replacing them with other letters, numbers, or words to uncover the pattern.
Once you do, the answer will come into view.
The pattern itself uses knowledge you’re all familiar with, so it’s not that difficult.
However, you will need a flash of insight, so keep an open mind as you think.
Start by testing any patterns that come to mind and look for a foothold.
Two babies were born to the same mother on the same day of the same year. However, they were not twins. Why is that?
See the answer
Answer: Because they were triplets.
At first glance it may seem contradictory, but if you loosen your thinking a bit, it makes sense. The two babies were indeed born to the same mother on the same day, but because there was actually another sibling, they were born as a set of three. Therefore, you can’t call just these two twins. This puzzle helps you practice thinking from multiple angles without being bound by fixed ideas. It’s a perfect quiz for funly developing children’s creativity and flexible thinking.
Even if you ask a bookworm to lend you a book, they won’t. Why is that?
See the answer
Because I'm reading it as an e-book.
They weren’t being mean by refusing to lend the book—it was because they were reading an e-book. Unlike a paper book, you can’t just hand over an e-book to someone. This puzzle is a creative thinking exercise that even elementary school kids can enjoy, where you reach the answer by looking beyond fixed ideas. Because it uses familiar items like e-books and paper books as its theme, learners can experience the fun of thinking in a relatable way.
In conclusion
We’ve put together a collection of logic quizzes where the key is whether you can reach the answer from the hidden hints in the questions.
They ranged from fun, pun-like riddles to quizzes that demand serious reasoning.
You might discover your strong suits or use them as a workout for your brain.
Try tackling these deduction challenges with family, friends, or a partner—it’s sure to be a blast.