Are you looking for a fun way to challenge your brain while sharpening your math skills? Math Riddles for Middle School are the perfect way to do just that!
If you’re a curious student wanting to test your problem-solving abilities or a teacher searching for creative ways to make math exciting in the classroom, these riddles are designed with you in mind.
They make learning numbers, patterns, and logic feel like an enjoyable game rather than a chore.
Get ready to think critically, laugh a little, and discover just how fun math can be!
Let’s dive in!
Algebra Riddles for Middle School
- Solve for x: x + 5 = 12. What is x?
Answer: 7 - If 3x = 21, what is x?
Answer: 7 - Solve for y: 2y – 4 = 10. What is y?
Answer: 7 - If x/2 = 8, what is x?
Answer: 16 - Solve for z: z + 9 = 15. What is z?
Answer: 6 - If 4x = 36, find x.
Answer: 9 - Solve for m: m – 7 = 3.
Answer: 10 - If 5y = 25, what is y?
Answer: 5 - Solve for n: 3n + 6 = 18. What is n?
Answer: 4 - If 2x – 3 = 7, what is x?
Answer: 5 - Solve for a: 6a + 2 = 20.
Answer: 3 - If x/3 + 2 = 6, find x.
Answer: 12 - Solve for b: b – 5 = 2.
Answer: 7 - If 7x = 49, what is x?
Answer: 7 - Solve for c: 2c + 4 = 14.
Answer: 5
Geometry Riddles for Middle School
- I have 4 sides of equal length and 4 right angles. What am I?
Answer: Square - I have 3 sides and 3 angles. What shape am I?
Answer: Triangle - I am round and have no corners. What am I?
Answer: Circle - I have 4 sides, but only 2 sides are equal. What am I?
Answer: Rectangle - I have 5 sides. What am I?
Answer: Pentagon - I am a polygon with 6 sides. What am I?
Answer: Hexagon - I have 8 sides. Who am I?
Answer: Octagon - My opposite sides are equal, and I am a quadrilateral. What am I?
Answer: Rectangle - I have all sides equal but angles are not 90 degrees. What am I?
Answer: Rhombus - I have 3 sides of different lengths. Who am I?
Answer: Scalene triangle - I have 2 equal sides and 2 equal angles. What am I?
Answer: Isosceles triangle - I am round like a ball but flat. Who am I?
Answer: Circle - I am a quadrilateral with one pair of parallel sides. Who am I?
Answer: Trapezoid - I am a shape with no straight edges. What am I?
Answer: Circle - I have 12 sides. Who am I?
Answer: Dodecagon
Logic Math Riddles for Middle School
- I am an odd number. Take away one letter, I become even. Who am I?
Answer: Seven - Which weighs more, a pound of feathers or a pound of bricks?
Answer: Both weigh the same - I am full of holes but hold water. What am I?
Answer: Sponge - A rooster lays an egg on top of a roof. Which way does it roll?
Answer: Roosters don’t lay eggs - How can you make the number 7 even without addition or subtraction?
Answer: Remove the ‘s’ - Two fathers and two sons went fishing. They caught three fish. How is that possible?
Answer: They are grandfather, father, and son - I have a head and a tail but no body. What am I?
Answer: Coin - If there are 3 apples and you take away 2, how many do you have?
Answer: 2 - Divide 30 by half and add 10. What’s the answer?
Answer: 70 - Which month has 28 days?
Answer: All months - A bat and a ball cost $1.10. Bat costs $1 more than the ball. How much is the ball?
Answer: $0.05 - There are 10 birds on a tree. You shoot one. How many left?
Answer: None (others fly away) - If a hen and a half lays an egg and a half in a day and a half, how many eggs in 3 days?
Answer: 6 eggs - A farmer had 17 sheep. All but 9 ran away. How many left?
Answer: 9 - Which weighs more: 2 kg of cotton or 2 kg of iron?
Answer: They weigh the same
Fractions and Decimals Riddles
- I am 1/2 of 100. What am I?
Answer: 50 - I am 1/4 of 80. What am I?
Answer: 20 - Add 0.5 + 0.25. What is the answer?
Answer: 0.75 - Subtract 0.7 from 1. What is the result?
Answer: 0.3 - Multiply 0.2 × 5. What is the answer?
Answer: 1 - Divide 0.6 by 0.2. What is the result?
Answer: 3 - I am 3/4 of 16. Who am I?
Answer: 12 - Convert 1/2 to decimal. What is it?
Answer: 0.5 - Convert 0.25 to fraction. What is it?
Answer: 1/4 - Add 2/3 + 1/3. What is the result?
Answer: 1 - Subtract 5/8 – 1/8. What is the answer?
Answer: 4/8 or 1/2 - Multiply 2/3 × 3/4. What is the result?
Answer: 1/2 - Divide 3/4 ÷ 3/8. What is the answer?
Answer: 2 - If a pizza is cut into 8 slices and you eat 3, what fraction is left?
Answer: 5/8 - I am a decimal between 0 and 1. I am 0.6 as a fraction. What am I?
Answer: 3/5
Word Problem Riddles
- I have 10 candies. I give 3 to my friend. How many left?
Answer: 7 - A train travels 60 miles in 1 hour. How far in 3 hours?
Answer: 180 miles - I buy 5 apples for $2 each. How much do I pay?
Answer: $10 - John has twice as many pencils as Mike. Mike has 4. How many pencils does John have?
Answer: 8 - A bus has 40 seats. 28 are filled. How many empty?
Answer: 12 - Sarah reads 20 pages per day. How many in 7 days?
Answer: 140 - A rectangle has length 8 cm and width 5 cm. What’s area?
Answer: 40 cm² - I had $50. I spent $30. How much left?
Answer: $20 - Mike buys 3 pens at $2 each and 2 notebooks at $5 each. Total?
Answer: $16 - There are 24 students in a class. Half are boys. How many girls?
Answer: 12 - A cake is cut into 8 slices. 5 eaten. How many left?
Answer: 3 - I run 2 miles every day. How many miles in a week?
Answer: 14 - A store has 120 candies. Sold 40. Remaining?
Answer: 80 - Peter has 7 packs of stickers. Each pack has 10 stickers. Total?
Answer: 70 - A box contains 50 chocolates. Share equally among 5 friends. How many each?
Answer: 10
Puzzle Riddles for Middle School
- I am a number. When doubled, I become 20. Who am I?
Answer: 10 - I am an odd number between 10 and 20. Subtract 5, I become even. What am I?
Answer: 15 - Fill in the blank: 3, 6, 9, __, 15
Answer: 12 - What comes next: 2, 4, 8, 16, __?
Answer: 32 - I am the sum of 2 consecutive numbers. Total is 11. What numbers?
Answer: 5 and 6 - What number is half of one-third of 36?
Answer: 6 - If x + x + x = 12, what is x?
Answer: 4 - Find the missing number: 5, 10, 15, __, 25
Answer: 20 - I am a number less than 50. When divided by 5, remainder is 2. Who am I?
Answer: 7, 12, 17, 22, 27, 32, 37, 42, 47 (any valid) - What number do you get if you add all numbers from 1 to 5?
Answer: 15 - If 10 – x = 4, what is x?
Answer: 6 - Solve: 3 + 3 × 3
Answer: 12 (order of operations) - Find the next number: 1, 1, 2, 3, 5, __
Answer: 8 - A number minus 7 equals 9. What is the number?
Answer: 16 - Double a number and add 6 equals 14. What is the number?
Answer: 4
Conclusion
These math riddles for middle school are more than just brain teasers—they are a fun way to boost logic, numerical skills, and problem-solving abilities.
Use them in classrooms, at home, or in math clubs to make learning interactive and exciting.
Students will enjoy the challenge and build confidence in math, all while having a great time with friends.
Riddles like these make numbers memorable, fun, and absolutely magical!
A passionate puzzle lover bringing you the best riddles and brain teasers on RiddleSpark.com. Get ready to challenge your mind and have fun!
