The best brain teaser apps and lesson ideas to stimulate your students' brain

Rebecca Siggers & Lucie Renard — Apr 27, 2026

You’re in the classroom, and you notice your students are unfocused or uninterested. Whether it’s stress, boredom, or anxiety, these emotions can seriously hinder student engagement and performance.

When students are restless or distracted, it becomes harder for them to absorb knowledge. As a teacher, you need quick strategies to stimulate student brains and spark classroom energy. That’s where brain teasers for students come in!

The benefits of using brain teasers in the classroom

Brain teasers (aka brain games) are short, fun exercises designed to activate thinking, boost memory, and improve focus. They’re incredibly effective at helping students stay alert and mentally active during lessons.

Here’s why every teacher should be using brain teaser activities

1. Brain teasers reduce boredom

Let’s face it: boredom is a universal classroom challenge. Students easily lose focus, and once they do, it’s hard to pull them back in.

That’s where classroom brain teasers come in. A well-timed riddle or energizer can shift students’ focus instantly. Whether it's a joke, logic puzzle, or a quick game, these brain exercises act as mental resets. They bring back classroom attention and ignite curiosity.

Some brain teasers are also called "energizers". A quick way to energize a student's brain by doing something else in your classroom. Here's the fun part: you can integrate your lesson materials in the energizers as well! Check out this post with 15 fun energizers for in the classroom.

2. Brain teasers improve concentration in class

Turn brain games into a friendly classroom competition—individually or in groups. Students will naturally sharpen their attention to solve hidden clues or logic problems.

Because the answers require careful reading and thinking, they’ll need to concentrate deeply, which helps strengthen their ability to focus on other academic tasks too.

If you want to include mystery messages and secret codes as brain teasers in your lessons, check out this post about using secret messages in the classroom.

3. Brain teasers boost students' memory power

The more effort students put into solving a challenge, the longer the information sticks. Brain teasers are great for improving both short-term and long-term memory.

The brain teasers will help your students to remember the things they learn for an extended period. For instance, they use more effort to acquire information, and it will stick to their brain for a long time.

This is due to the success and satisfaction brain teasers bring to your students. You should know that learning only comes when students experience successes. And of course, students need a challenge to experience success.

Crossword riddles like "Crossword solution 911" are a good way for students to train their long-term memory. Check out the tools to see how you can make one yourself for in the classroom. You can also give them the assignment to fill out the large crossword puzzle at the back of a magazine or newspaper. It's fun too!

4. Brain teasers enhance the brain's processing speed

There are times when students need to learn in urgency. Let us say that you want to cover a topic before the end of the week, and you are frustrated because the students do not seem to get the concepts as fast as you need. That is the time you should shift your lessons into brain games.

Brain teasers will help your kids to process the information they learn faster, making their brains stay active. Students who compete on brain teasers will work more quickly to ensure that they arrive at the result before time runs out. This behavior calls for faster action for the brain. With sufficient training, your mind will start processing information faster and boost the learning speed.

5. Brain teasers enhance problem-solving skills

10 Brain training apps for students

So, now you know the good brain teasers can do for your students' mind, I have some fun tools for you. Most of them are ready-to-use, and some brain teasers, you can create yourself. That last one is especially useful as you can add your own lesson content and make a brain teaser out of it.

The first 6 brain teaser apps are for high school students (and teachers). The other brain teaser apps can be used by primary school students as well. The BookWidgets crossword and word search games difficulty level depends on how simple or hard you make them for your students.

1. Elevate by The Mind Company

Elevate is a brain training app developed by The Mind Company. It is available on both Android and iOS. The app includes more than 35 brain training games designed to improve cognitive skills such as memory, focus, and processing speed. It also features a tracking system that shows your performance over time.

As you progress, the difficulty of the games increases, helping you continuously challenge and improve your skills. You can also set daily training goals to personalise your learning experience and focus on specific cognitive areas.

2. Lumosity

For diversity in brain training, Lumosity offers you more than 40 brain games for daily training practice. It offers you various options like language games, math, memory games, puzzles, logic games, and problem-solving games. The app is available for both iOS and Android.

Lumosity also offers you a fit-test so that you can determine how you perform compared to other world players. The app supports seven world languages and gives you detailed insights about your game progress and personalized training.

You will also receive tips for becoming a better player and improve your accuracy while learning. This sounds like a complete learning tool that makes the process fun, easy, faster, and adaptable.

3. Peak

Peak, another brain teaser app pushes you hard with short, intense workouts designed around your life and interests. Challenge the skills that matter to you most with games that test your Focus, Memory, Problem Solving, Mental Agility and more. All games are fun and kind of addictive (in a good way! 😄 )

4. EscapeRoom Classroom

EscapeRoom Classroom (by Kenji Kiuchi) is a free escape room-style puzzle app available on iOS devices. Players start trapped in a virtual classroom and must solve a series of puzzles, including reading- and logic-based challenges, to find the key and escape. This immersive experience encourages critical thinking, attention to detail, and problem-solving skills in a fun, gamified format.

5. Dark stories

This app or card game helps your students ask questions. The teacher reads the situation. Like for example "A man walked into a bar and asked a glass of water. The bartender pointed his gun at the head of the man. The man said thank you and left." Now students have to ask lots of "yes and no" questions to figure out the complete story.

6. Car Parking

So, if you have students that are really into cars, you can fill a dead moment with this brain teaser. Car Parking is an app in which you have to get the car out of the parking lot. At first, it's easy, but it gets harder. You have to move cars in a different direction in order to get the car out? Keep your head at the game because it's not that easy.

7. Brain games kids

Brain games kids is a brain training app for children aged 7 and above. The app offers several brain training games like Labyrinths, puzzles jigsaw, alphabet soup, games of wit, memory, mazes, visual acuity, spatial vision, minesweeper, sudoku, find objects ...

8. Monster Physics

This is a science game for kids. They get a mission to solve by building a contraption. They can use different building materials, and it takes some trial and error as you refine your design to accomplish the task. Students get to learn something about physics at an early age physics concepts like speed, velocity, mass, and density. It encourages them the attitude of trying and not giving up.

9. BookWidgets Crossword Widget

With BookWidgets, you can create lots of interactive exercises. Choose from 40+ digital lesson templates and adapt them with your own content. Of course, you can create also a crossword riddle. As you know crossword riddles help students to develop long term memory, it's a great way to create them yourself. Just add words or sentences as a description and add the word them need to fill out. The crossword riddle gets automatically graded, so your students get immediate feedback. Click on the title link to check out a fun example of a crossword riddle made with BookWidgets and check out more crossword examples right here.

10. BookWidgets Word Search Widget

Just like a crossword riddle, you can also create word search puzzles with BookWidgets. You can just sum up the words they have to find in the grid, or you can tease their brain more by giving translations, or synonyms of the words they have to find in the word search puzzle. Click on the title link to check out a word search puzzle example and click here for more word search examples.

10 Brain teaser activities for in the classroom

If you're not a fan of tools or apps, or you just don't have the right technology in your classroom, these fun brain teaser activities will do the trick. Most of the games are brain teaser activities for primary school students. Of course, you can adapt them and make them harder, so they can be used as brain teasers for high school students as well.

You'll notice that many of these brain teaser games are perfect icebreakers for on the first day of school.

1. What's in my bag?

Every teacher comes to class with rather a large purse or teacher bag. There are three things you can do with this game:

Let the students write down as many things they think you carry in your teacher bag. The student who has guessed the most items wins!
Choose 3 items and challenge your students to invent or write down a story around these 3 items.
Place all the items from your teacher bag on the desk. Your students have to memorize all the items for a short amount of time (like 15 seconds). When they close their eyes, remove a few items. Now your students have to remember the missing items.

If you have enough time, I suggest you play all the games. It's so much fun and students are training their brain in a fun way!

2. Orchestra and conductor

This brain teaser is all about alertness. How fast can students find a change of behavior in a large group? The whole class is the orchestra and one student is the conductor. The conductor starts a movement and the orchestra has to copy it. One student leaves the classroom while the group decides who may play the role of the conductor. When the student comes back inside, he or she has to distinguish the conductor out of the orchestra. The group has to be alert and copy the conductor's movements as fast as they can without giving him away. Can the student find the conductor within 2 minutes? You can repeat the game a few times or encourage students to play it on the playground.

3. Magazine hunt

Ask your students to bring a magazine to class and turn the magazine into a scavanger hunt. Ask your students to find certain topics or things like "something that's blue and starts with an A", or "How many names are mentioned on the first 3 pages?", or "cirle all adjectives from page 5 to 8. This brain teaser teaches your students to read and skim a text.

4. Categories

This is a fun game and brain teaser that has a lot of value when teaching (foreign) languages. The teacher shouts out a category like "animals". Now, students have to name an animal in that certain foreign language, one by one. How many animals can they find? If they are stuck, the teacher can help them out by depicting an animal they didn't find yet. If you're teaching your students to describe a person, the category might be "clothing". Also think about categories like stores, sports, courses, fruits, vegetables, food, and so on. It's a fun brain teaser game when you want to revise new vocabulary.

5. License plate

A license plate in Belgium is like this: "1-ABC-123". Just like in other countries, the license plate includes letters. Maybe you know already where I'm going. You might have played this game with your siblings or friends when you were little. It's actually a good brain teaser activity.

Ask your students to write down the license plate of their parents car. In the classroom, they have to invent a fun book/story title using the three letters on the license plate. Every word in the book title must start with a letter of the license plate. Here's an example:

License plate: "1-COT-123"
Book/ story title: Confessions of titans

Let your students use the dictionary so they can use more advanced vocabulary. This helps them improve their vocabulary building and language skills at the same time. You can also ask them to do the same with the license plate of another student as a fun educational classroom game.

6. Escape the classroom

Create your own escape room. Close the door with a digit lock and let your students finish challenges and assignments in order to find out all the digits of the lock. Make a story out of it and include your own lesson material. Search the internet for fun examples or use ready-to-use breakout boxes.

7. Would you rather...?

This brain teaser gives your students a dilemma. They have to choose between two situations.

Here are some examples:

Would you rather spend the night in an igloo or in a treehouse?
Would you rather be a plumber or a roofer?
Would you rather have 10 pet cats or 10 pet dogs?

Here's a list of dilemmas you can copy. This game engages your students to think critically. What's the reason behind their answer? It's also a nice icebreaker for the first day of school.

8. Sound sentence

One student creates a short clapping pattern, and the next student repeats it and adds a new one. The third student repeats the previous patterns in the correct order and adds their own clapping pattern as well. If a student forgets the full “sound sentence,” they are out of the game. The game continues until only three students remain.

This classroom activity is perfect for memory training, rhythm practice, and sound pattern recognition. It helps students improve concentration, recall skills, and auditory sequencing in a fun and interactive way.

9. Spot the difference

When starting a new school year, take two fun group pictures of your classroom and ask the other teacher of your grade to do the same.

Ask your students to stand exactly the same on the first and second picture. For the second picture, you change small things. Someone is wearing a Santa hat instead of a cowboy hat, someone crosses his legs, someone makes the "peace" sign instead of the "rock" sign, and so on.

Now, exchange both pictures with the other group and spot all the differences. Students of your class get to know the other students and the other way around.

Which class did best and found all the differences?

P.S. Turn it into a digital and educational activity with the Spot the Difference widget from BookWidgets. Discover more about this widget in this blog post.

10. Say it with emoji's

There are so many things you can do with emoji's in your classroom. Use emoticons to introduce a lesson topic. A fun brain teaser before the start of a lesson is always a good idea. Let your students guess the lesson topic. Let them figure out what all the emoji's are trying to say. Here's an example:

“What do you think the lesson of today will be about?”

🌍 🚗 🚗 ➡️ ☀️ ☃️ 🌬 ❄️ 🌊 🐧 ☠️

(This lesson is about “Global warming”)

Here are 9 more ways to use emoji's in your lessons.

Wrap up

Incorporating brain teaser apps and games in the classroom is more than just fun. It’s an effective way to boost engagement, improve memory, and develop essential problem-solving skills in your students.

Whether you're using educational brain games to reduce boredom, enhance focus, or train memory, these tools can transform your lessons into exciting challenges. From crossword puzzles and escape rooms to creative digital brain training apps, there’s something for every grade and subject.

I hope you can spark your students' brain with these brain teaser tools and lesson ideas. If you want more brain games for in the classroom, check out this Prodigy blog post with 45 fun brain teasers for kids.

Create your own brain teasers or crossword riddles and word search puzzle right now:

Create A Crossword Or Wordsearch Game

Author bio

Rebecca Siggers is a teacher and passionate writer. She enjoys writing about kids learning activities, parenting tips, and effects of puzzles and crosswords. She has been working as a freelance writer for quite some time now. Through her writing, she hopes to inspire as many people as possible to help kids grow their mental skills.

Brain teaser apps and lesson ideas