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25 of the Hardest Riddles Ever. Can You Solve Them?

Who doesn't love brain teasers and challenging riddles? If you think you’re already a pro at solving tricky riddles, put yourself to the test with these and find out! (Don't worry, answers are included.)

Toughest-Riddles-EverTatiana Ayazo/ RD.com

Riddle: Sibling squad

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? 

This trick question gives you a bunch of ways to get totally confused if you try to figure out the answer. The key is to keep it simple. Be sure to count the sisters and brothers in total and in terms of their own number of siblings. Then the answer gets a little easier.

Answer: Four sisters and three brothers. Yeah, this one had a little math involved! If it was no sweat, try out these other math riddles only the smartest can get right.

Tatiana Ayazo/Rd.com

Riddle: Say my name

What disappears as soon as you say its name? 

Hard riddles like this one require you to think logically or in a straightforward way. At the same time, it's employing a conceptual metaphor with the notion of something disappearing. The answer seems so simple—but not until you've figured it out! Before that moment, it's got your brain in a twist.

Answer: Silence

Toughest-Riddles-EverTatiana Ayazo/ RD.com

Riddle: Math time

How can the number four be half of five?

You might start doing some elaborate fractions but hard riddles like this are sometimes much more about word play than crunching the numbers. Think literally and the answer may just appear right before your eyes.

Answer: IV, the Roman numeral for four, which is "half" (two letters) of the word five. Take this quiz to see if you're a genius.

Tatiana Ayazo/Rd.com

Riddle: Find the key

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

This one tricks you by having you think about space that can be entered. Then it gets you to merge that with a space without rooms where you can't leave. You might even be hung up on those keys. That's where you should linger. Think about that word. What are some other meanings of "keys"—especially that don't require locks?

Answer: A keyboard

Toughest-Riddles-EverTatiana Ayazo/ RD.com

Riddle: Beachy keen

What gets wet while drying?

This one has a simple answer even though it stumps most people who try to figure it out. Wet and dry seem like they always have to be opposite, so you might get tripped up. Think of an object that can, ahem (hint!) absorb or be both.

Answer: A towel. Can you guess these animals based on their footprints?

Toughest-Riddles-EverTatiana Ayazo/ RD.com

Riddle: Literally speaking

How many letters are in the alphabet?

Some hard riddles trip you up by sending you to the easiest answer first. You got this one easy, right? Twenty-six—if you're talking English alphabet. Not so fast. Take another look and get super simple and straightforward.

Answer: There are 11 letters in the words "the alphabet"

Toughest-Riddles-EverTatiana Ayazo/ RD.com

Riddle: Family affair

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?

Riddles try to send your train of thought off in scattered directions. Try to stay clear and just follow the logic. Using letters as placeholders for names like "Uncle Bob" or "Aunt Linda" makes straightforward relationships seem difficult.

Answer: A is D's aunt. Here are more brain teasers that will leave you stumped.

Toughest-Riddles-EverTatiana Ayazo/ RD.com

Riddle: Line up

What are the next three letters in this combination? OTTFFSS 

This super hard question asks you to determine the relationship between the letters. They seem random: a vowel, two consonants from the tail of the alphabet, two from the front, then two more. What could they mean? What's the pattern? In this case, think of common strings of words to get you closer. But it still seems almost impossible to hit on the solution.

Answer: E N T (Each letter represents the first letter in the written numbers: One, Two, Three, Four, Five, etc.).

Toughest-Riddles-EverTatiana Ayazo/ RD.com

Riddle: Yours or mine

This belongs to you, but everyone else uses it. 

The key to this riddle to think of anything else but an actual object. Use your critical thinking skills to get conceptual on this one.

Answer: Your name. Can you figure out these challenging detective riddles?

Toughest-Riddles-EverTatiana Ayazo/ RD.com

Riddle: Color test

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?

Some riddles work by getting your brain to go through a series of associations so you get locked in and can't think of alternatives. Be careful with this riddle. Is the question really connected to that color you were asked to think about? Most folks say that cows drink milk because they're fixated on the color white.

Answer: Water

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