Riddles are a fun and powerful way to challenge the mind, and they’re especially perfect for high school students looking to boost their thinking skills. Whether you’re trying to sharpen your logic, improve problem-solving abilities, or simply have a good time with friends, riddles offer the perfect mix of entertainment and learning.
In this collection of riddles for high school students, you’ll discover a variety of brain teasers—ranging from easy and funny to tricky and thought-provoking. These riddles are great for classrooms, study breaks, group activities, or even social media fun. Get ready to think outside the box and put your brain to the test!
Riddles for High School Students with Answers
1. Riddle: What is 3/7 chicken, 2/3 cat, and 2/4 goat?
Answer: Chicago
2. Riddle: I am a word of five letters and people eat me. If you remove the first letter, I become a form of energy. If you remove the first two letters, I am needed to live. What am I?
Answer: Wheat (Heat, Eat)
3. Riddle: A man is looking at a portrait and says, “Brothers and sisters I have none, but that man’s father is my father’s son.” Who is in the portrait?
Answer: His son
4. Riddle: What English word has three consecutive double letters?
Answer: Bookkeeper
5. Riddle: I have keys but no locks. I have a space but no room. You can enter, but you can’t leave. What am I?
Answer: A keyboard
6. Riddle: What can you catch, but not throw?
Answer: A cold
7. Riddle: I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?
Answer: Your breath
8. Riddle: What is seen in the middle of March and April that can’t be seen at the beginning or end of either month?
Answer: The letter “R”
9. Riddle: What has a thumb and four fingers, but is not alive?
Answer: A glove
10. Riddle: If you’re running in a race and you pass the person in second place, what place are you in?
Answer: Second place
11. Riddle: What belongs to you, but other people use it more than you do?
Answer: Your name
12. Riddle: I am an odd number. Take away a letter and I become even. What number am I?
Answer: Seven
13. Riddle: What word in the dictionary is spelled incorrectly?
Answer: Incorrectly
14. Riddle: If two’s company, and three’s a crowd, what are four and five?
Answer: Nine
15. Riddle: What has 13 hearts, but no other organs?
Answer: A deck of cards
16. Riddle: Where does today come before yesterday?
Answer: In the dictionary
17. Riddle: What has a head and a tail but no body?
Answer: A coin
18. Riddle: What invention lets you look right through a wall?
Answer: A window
19. Riddle: Poor people have it. Rich people need it. If you eat it, you die. What is it?
Answer: Nothing
20. Riddle: What goes up and down but doesn’t move?
Answer: A staircase
Riddles for High School Students Hard
1. Riddle: What is so fragile that saying its name breaks it?
Answer: Silence.
2. Riddle: What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?
Answer: A river.
3. Riddle: A man calls his dog from the opposite side of the river. The dog crosses without getting wet, no bridge or boat. How?
Answer: The river was frozen.
4. Riddle: “Brothers and sisters I have none, but that man’s father is my father’s son.” Who is in the photo?
Answer: His own son.
5. Riddle: With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might; physically joining with a single bite. What am I?
Answer: A stapler.
6. Riddle: I have lakes with no water, mountains with no stone, cities with no buildings. What am I?
Answer: A map.
7. Riddle: What does man love more than life, hate more than death; poor have it, rich need it; miser spends it, spendthrift saves it?
Answer: Nothing.
8. Riddle: A doctor gives you three pills and tells you to take one every half hour. How long will they last?
Answer: One hour.
9. Riddle: If a plane crashes on the border of the US and Canada, where do they bury the survivors?
Answer: You don’t bury survivors.
10. Riddle: What has a ring but no finger?
Answer: A telephone.
11. Riddle: I am always hungry, I must always be fed. The finger I touch will soon turn red. What am I?
Answer: Fire.
12. Riddle: The person who makes it sells it. The person who buys it never uses it. The person who uses it doesn’t know they’re using it. What is it?
Answer: A coffin.
13. Riddle: What English word retains the same pronunciation even after you remove four of its five letters?
Answer: Queue.
14. Riddle: A house has four walls. All of the walls are facing south, and a bear is circling the house. What color is the bear?
Answer: White (it’s a polar bear at the North Pole).
15. Riddle: Before Mount Everest was discovered, what was the highest mountain in the world?
Answer: Mount Everest.
16. Riddle: What word begins with E and ends with E, but only has one letter?
Answer: Envelope.
17. Riddle: How many months have 28 days?
Answer: All 12.
18. Riddle: I am not alive, but I grow; I don’t have lungs, but I need air; I don’t have a mouth, but water kills me. What am I?
Answer: Fire.
19. Riddle: What can you break, even if you never pick it up or touch it?
Answer: A promise.
20. Riddle: If you have me, you want to share me. If you share me, you will have none. What am I?
Answer: A secret.
Riddles for High School Students worksheet
1. Riddle: I’m tall when I’m young, short when I’m old. What am I?
Answer: Candle
2. Riddle: The more there is, the less you see. What am I?
Answer: Darkness
3. Riddle: What has one eye but can’t see?
Answer: Needle
4. Riddle: What has many teeth but can’t bite?
Answer: Comb
5. Riddle: I’m light as a feather, but the strongest man can’t hold me for long. What am I?
Answer: Breath
6. Riddle: What comes once in a minute, twice in a moment, but never in a thousand years?
Answer: Letter M
7. Riddle: What has a head and a tail but no body?
Answer: Coin
8. Riddle: You see me once in June, twice in November, but not at all in May. What am I?
Answer: Letter E
9. Riddle: What can you break without touching it?
Answer: Promise
10. Riddle: I have branches but no leaves or fruit. What am I?
Answer: Bank
11. Riddle: What gets sharper the more you use it?
Answer: Tongue
12. Riddle: Forward I’m heavy, backward I’m not. What am I?
Answer: Ton
13. Riddle: What has a neck but no head?
Answer: Bottle
14. Riddle: I follow you all day long, but when the night or rain comes, I am gone. What am I?
Answer: Shadow
15. Riddle: What has words but never speaks?
Answer: Library
16. Riddle: What can fill a room but takes up no space?
Answer: Light
17. Riddle: You cut me, I get bigger. What am I?
Answer: Hole
18. Riddle: What is full of holes but still holds water?
Answer: Sponge
19. Riddle: What tastes better than it smells?
Answer: Tongue
20. Riddle: Remove my skin and I won’t cry, but you might. What am I?
Answer: Onion
Tricky Riddles for High School Students
1. Riddle: If you drop me, I’m sure to crack, but give me a smile and I’ll smile back.
Answer: A mirror
2. Riddle: They fly without wings, cry without eyes. Wherever they go, darkness flies.
Answer: Clouds
3. Riddle: What that’s always running but never walks, has a mouth but never talks?
Answer: A river
4. Riddle: Why he has hands but cannot clap, yet everyone depends on his lap?
Answer: A clock
5. Riddle: She has cities but no houses, forests but no trees, and rivers but no water.
Answer: A map
6. Riddle: His head is round, his body is flat, he carries value but is never fat.
Answer: A coin
7. Riddle: How can you take one out of two and still leave two?
Answer: Remove the word “one” from the word “two” → you still have “two.”
8. Riddle: Witch has one eye but cannot see?
Answer: A needle
9. Riddle: If you have me, you want to share me. If you share me, you don’t have me.
Answer: A secret
10. Riddle: They come at night without being called, and vanish by day without being stolen.
Answer: Stars
11. Riddle: What that’s full of holes but still holds water?
Answer: A sponge
12. Riddle: Why he can run but never walks, has a bed but never sleeps?
Answer: A river
13. Riddle: She speaks without a mouth, hears without ears, and repeats what’s near.
Answer: An echo
14. Riddle: His face is seen in water but never gets wet.
Answer: Reflection
15. Riddle: How many months have 28 days?
Answer: All 12 months
16. Riddle: Witch room has no doors or windows?
Answer: A mushroom
17. Riddle: If you feed me, I live; if you give me water, I die.
Answer: Fire
18. Riddle: They have keys but no locks, space but no room, you can enter but not go outside.
Answer: A keyboard
19. Riddle: What that’s yours but other people use it more than you do?
Answer: Your name
20. Riddle: Why he is always in front of you but can never be seen?
Answer: The future
Funny Riddles for High School Students
1. Riddle: Why did the math book look sad?
Answer: It had too many problems.
2. Riddle: Why can’t your nose be 12 inches long?
Answer: Because then it would be a foot.
3. Riddle: What do you call fake spaghetti?
Answer: An impasta.
4. Riddle: What do you call cheese that isn’t yours?
Answer: Nacho cheese.
5. Riddle: What did one wall say to the other wall?
Answer: “Meet you at the corner.”
6. Riddle: Why did the student eat his homework?
Answer: The teacher said it was a piece of cake.
7. Riddle: What’s brown and sticky?
Answer: A stick.
8. Riddle: What’s orange and sounds like a parrot?
Answer: A carrot.
9. Riddle: Which word in the dictionary is spelled incorrectly?
Answer: Incorrectly.
10. Riddle: What has three feet but cannot walk?
Answer: A yardstick.
11. Riddle: What kind of ship has two mates but no captain?
Answer: A relationship.
12. Riddle: What do you call a nose that is 12 inches long?
Answer: A foot.
13. Riddle: What has many teeth but cannot bite?
Answer: A comb.
14. Riddle: What can you catch but never throw?
Answer: A cold.
15. Riddle: What has a bottom at the top?
Answer: Your legs.
16. Riddle: Why don’t scientists trust atoms?
Answer: Because they make up everything!
17. Riddle: What has keys but can’t open locks?
Answer: A piano (or a keyboard).
18. Riddle: What has hands but can’t clap?
Answer: A clock.
19. Riddle: What do you break before you use it?
Answer: An egg.
20. Riddle: What has four wheels and flies?
Answer: A garbage truck.
Math Riddles for High School Students
1. Riddle: If two’s company and three’s a crowd, what are four and five?
Answer: Nine
2. Riddle: They add up to 15, but one is double the other. What are they?
Answer: 5 and 10
3. Riddle: What that’s always increasing but never decreases, even though you can subtract from it?
Answer: Age
4. Riddle: Why he multiplies by zero, he disappears no matter how big he was. Who is he?
Answer: Any number
5. Riddle: She has digits 1, 2, 3, 4, 5. Rearrange them to make the largest possible number.
Answer: 54321
6. Riddle: His sum is 30, but he’s made of three consecutive numbers. What are they?
Answer: 9, 10, 11
7. Riddle: How can you make 1000 by adding 8 eight times?
Answer: 888 + 88 + 8 + 8 + 8 = 1000
8. Riddle: Witch number becomes smaller when you add to it?
Answer: A negative number
9. Riddle: If you divide 30 by half and add 10, what do you get?
Answer: 70
10. Riddle: They are twins in math: one is odd, one is even, but together they always make an odd sum. Who are they?
Answer: An even number and an odd number
11. Riddle: What that’s squared is always positive, even if the number itself is negative?
Answer: Any real number
12. Riddle: Why he is the only number that cannot be represented by Roman numerals?
Answer: Zero
13. Riddle: She is a three-digit number. Her tens digit is five more than her ones digit, and her hundreds digit is eight less than her tens digit. What is she?
Answer: 194
14. Riddle: His perimeter is 40, but all sides are equal. What shape is he and what’s the side length?
Answer: A square, side length 10
15. Riddle: How many times can you subtract 10 from 100?
Answer: Once — after that, you’re subtracting from 90
16. Riddle: Witch fraction is larger: 2/3 or 3/5?
Answer: 2/3
17. Riddle: If you multiply me by any number, the result is always me. Who am I?
Answer: Zero
18. Riddle: They are prime numbers that add up to 10. What are they?
Answer: 3 and 7, or 5 and 5
19. Riddle: What that’s the smallest perfect square greater than 20?
Answer: 25
20. Riddle: Why he is called the “identity” in multiplication?
Answer: Because multiplying by 1 leaves any number unchanged
Final Thoughts
Riddles are more than just simple puzzles—they’re a great way for high school students to develop critical thinking, creativity, and problem-solving skills while having fun.
Whether you solved them all or found a few that left you scratching your head, these riddles for high school students are sure to keep your mind active and engaged. Don’t forget to share these brain teasers with friends, challenge your classmates, and keep coming back for more exciting and clever riddles. The more you practice, the sharper your mind becomes!