Brain Teasers for Adults

50 Brain Teasers Riddles for Adults (With Answers)

Here are some Brain Teasers Riddles for adults with Answers to puzzle your friends and family. Puzzle them with these Brain Teasers Riddles and check if they can answer them correctly. We hope that these riddles will make your day.


Brain Teasers Riddles

Riddle: What word in the English language does the following: the first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word? 

Answer: Heroine

Riddle: You measure my life in hours and I serve you by expiring. I’m quick when I’m thin and slow when I’m fat. The wind is my enemy. 

Answer: A candle.

Riddle: How can 8 + 8 = 4?

Answer: When you think in terms of time. 8 AM + 8 hours= 4 o’clock.

Riddle: What English word has three consecutive double letters? 

Answer: Bookkeeper.

Riddle: A is the brother of B. B is the brother of C. C is the father of D. So how is D related to A?

Answer: A is D’s uncle.

Riddle: Which word in the dictionary is always spelled incorrectly?

Answer: “Incorrectly.”

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.”

Riddle: You see a boat filled with people. It has not sunk, but when you look again you don’t see a single person on the boat. Why?

Answer: All the people were married.

Riddle: A doctor and a bus driver are both in love with the same woman, an attractive girl named Sarah. The bus driver had to go on a long bus trip that would last a week. Before he left, he gave Sarah seven apples. Why?

Answer: An apple a day keeps the doctor away!

Riddle: I left my campsite and hiked south for 3 miles. Then I turned east and hiked for 3 miles. I then turned north and hiked for 3 miles, at which time I came upon a bear inside my tent eating my food! What color was the bear?

Answer: White, since the only place you can do that, is the North Pole and polar bears are the only kind of bears that live there.

Riddle: A woman shoots her husband. Then she holds him underwater for over 5 minutes. Finally, she hangs him. But 5 minutes later they both go out together and enjoy a wonderful dinner together. How can this be?

Answer: The woman was a photographer. She shot a picture of her husband, developed it, and hung it up to dry.



Riddle: What is special about these words: job, polish, herb?

Answer: They are pronounced differently when the first letter is capitalized.

Riddle: I am taken from a mine, and shut up in a wooden case, from which I am never released, and yet I am used by almost everybody. What am I?

Answer: Pencil lead

Riddle: A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

Answer: The river was frozen

Riddle: I can’t be bought, but I can be stolen with a glance. I’m worthless to one, but priceless to two. What am I?

Answer: Love

Riddle: Turn me on my side and I am everything. Cut me in half and I am nothing. What am I? 

Answer: The number 8

Riddle: No matter how little or how much you use me, you change me every month. What am I?

Answer: A calendar

Riddle: What has cities, but no houses; forests, but no trees; and water, but no fish?

Answer: A map

Riddle: A red house is made from red bricks. A blue house is made from blue bricks. A yellow house is made from yellow bricks. What is a greenhouse made from? 

Answer: Glass

Riddle: There is a word in the English language in which the first two letters signify a male, the first three letters signify a female, the first four signify a great man, and the whole world, a great woman. What is the word?

Answer: Heroine

Riddle: In my hand, I have two coins that are newly minted. Together, they total 30 cents. One isn’t a nickel. What are the coins? 

Answer: A quarter and a nickel

Riddle: What is harder to catch the faster you run?

Answer: Your breath

 Riddle: What has no hands but might knock on your door, and if it does you better open up?

Answer: Opportunity

Riddle: What do you throw out when you want to use it but take in when you don’t want to use it?

Answer: An anchor

Riddle: How many letters are in the alphabet?

Answer: There are 11 letters in the words “the alphabet”

Riddle: I can be short and sometimes hot. When displayed, I rarely impress. What am I?

Answer: Temper

Riddle: What can be driven although it doesn’t have wheels, sliced but stays whole?

Answer: A golf ball

Riddle: The cost of making only the maker knows, Valueless if bought, but sometimes traded. A poor man may give one as easily as a king. When one is broken pain and deceit are assured. What is it?

Answer: Promise

Riddle: What rocks but does not roll?

Answer: A rocking chair

Riddle: Shoot at me a thousand times and I may still survive. But, one scratch from me and you will find your prospects dive. What am I?

Answer: An eight-ball

Riddle: Why is the letter F like death?

Answer: Because without it life is a lie, or it makes life a lie.

Riddle; You do not want to have it, But when you do have it, You do not want to lose it.  What is it?

Answer: A lawsuit

Riddle: An elevator is on the ground floor. There are four people in the elevator including me. When the lift reaches the first floor, one person gets out and three people get in. The lift goes up to the second floor, 2 people get out, 6 people get in. It then goes up to the next floor up, no one gets out but 12 people get in. Halfway up to the next floor up the elevator cable snaps, it crashes to the floor. Everyone else dies in the elevator except me. How did I survive?

Answer: I got off on the first floor



Riddle: Guess the next three letters in the series GTNTL.

Answer: I, T, S. The complete sequence is the first letter of every word in the sentence.

Riddle: Arnold Schwarzenegger has a long one. Michael J. Fox has a short one. Madonna does not use hers. Bill Clinton always uses his. The Pope never uses his. What is it?

Answer: Last name

Riddle: The number 8,549,176,320 is unique. What is so special about it?

Answer: This is the only number that includes all the digits arranged in alphabetical order.

Riddle: Find a number less than 100 that is increased by one-fifth of its value when its digits are reversed.

Answer: 45 (1/5 of 45 = 9, 9 + 45 = 54)

Riddle: What letter comes next in the following sequence? D RM F S L T_

Answer: D – each letter represents one note in the diatonic musical scale: Do, Re, Mi, Fa, Sol, La, Ti, Do

Riddle: A woman shoots her husband, then holds him underwater for five minutes. Next, she hangs him. Right after, they enjoy a lovely dinner. Explain. 

Answer: She took a picture of him and developed it in her darkroom. 

Riddle: You are in a place called Wally’s World and there is only one law. There is a mirror, but no reflection. There is pizza with cheese, but not a sausage. There is pepper, but no salt. There is a door, yet no entrance or exit. What is the law?

Answer: Each word in Wally’s World must contain double letters.

Riddle: I come in different shapes and sizes. Parts of me are curved, other parts are straight. You can put me anywhere you like, but there is only one right place for me. What am I?

Answer: A puzzle piece

Riddle: I have no eyes, no legs, or ears, and I help move the earth. What am I?

Answer: An earthworm

Riddle: A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family? 

Answer: Four sisters and three brothers.

Riddle: What disappears as soon as you say its name? 

Answer: Silence

Riddle: How can the number four behalf of five?

Answer: IV, the Roman numeral for four, which is “half” (two letters) of the word five.

Riddle: A sundial has the fewest moving parts of any timepiece. Which has the most?

Answer: An hourglass, with thousands of grains of sand

Riddle: I have keys, but no locks and space, and no rooms. You can enter, but you can’t go outside. What am I?

Answer: A keyboard

Riddle: What gets wet while drying?

Answer: A towel.

Riddle: First, think of the color of the clouds. Next, think of the color of snow. Now, think of the color of a bright full moon. Now answer quickly what do cows drink?

Answer: Water.

Riddle: What comes once in a minute, twice in a moment, but never in a thousand years?

Answer: The letter “M.”



Keeping your brain fit and active is as important as your body. Puzzles and riddles are the best things for your brain’s health. There are many types of puzzles to test your problem-solving and critical thinking ability.

The most important thing you’ve to keep in mind is that a puzzle could have more than one correct answer. If you think our answer is incorrect or needs any modification, please feel free to inform us in the comment section below. We are eagerly waiting for your kind feedback, comments, and suggestions.


Be sure to share it with your friends and family to see if they can get it and in the meantime, we have another one for you.

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