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Knowledge - Brain Games

So you think you’re a whiz kid? Test your genius skills with these fun (and challenging) brain games. Your mind will thank you.

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Egg Riddle: If I Had 4 Eggs: Try to Solve the Viral Riddle

The Internet is stumped by this tricky viral math puzzle! Can you solve the "If I had 4 eggs" riddle?

60 of the Best Riddles for Kids: Can You Solve Them?

Put on your thinking cap for these riddles for kids! Find all the answers from the easiest riddles for kids...


Can You Spot the Difference in These 20 Pictures?

Get your eyes ready—these are pretty tricky.


16 Math Riddles Only the Smartest Can Get Right

You might want to break out a calculator because it takes a genius to solve these tricky math riddles.


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20 Printable Sudoku Puzzles to Test Your Smarts

These printable sudoku puzzles are four different levels of difficulty. You want to start with the easy ones, but if...


Someone’s Mother Has Four Sons: Try to Solve the Viral Riddle

It's the riddle everyone wants to know the answer to, but can YOU solve it?


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78 Riddles for Adults That Will Test Your Smarts

You'll have to really stretch your brain to figure out some of these easy, funny, and hard riddles for grown-ups!


45 Best Bible Riddles You’ll Have Fun Solving

See how well those Sunday school lessons paid off with these Christian riddles for kids.


Mr. Smith Had 4 Daughters: Try to Solve the Viral Riddle

"Mr Smith had four daughters" is a viral Facebook riddle that has everyone stumped. Check out the detailed answer here!...


How Well Do You Know the Flags of the World?

Do you know your tricolor from your Trinidad and Tobago? With nearly 300 country flags to choose from,...


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35 People with Higher IQs Than Einstein

We're going to need another name to be synonymous with "genius."


15 Strategy Board Games You’ll Love (and Where to Get Them)

Play these games to determine if your decisions will lead to victory or vanquishment.


33 of the Best Tongue Twisters for Kids

Help your kids with language development while having fantastic frolicking finger-licking fun with these tongue twisters.


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20 Rebus Puzzles That Are Almost Impossible to Solve

You're going to need a lot of patience and a good eye to solve these tricky rebus puzzles. How fast...


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15 Word Puzzles That Will Leave You Stumped

Only the smartest will get all of these right!


If You Can Answer These Mensa Quiz Questions, You’re Probably a Genius

Here's a fun way to put your IQ through its paces. Try these sample questions!



30 Printable Crossword Puzzles to Test Your Smarts

We've collected a number of the crossword puzzles that Reader's Digest runs in their large print edition every month for...

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How Many States Can You Identify on a Completely Blank Map?

Think you know where most of the U.S. states are located? See if you can still pick them out when...


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Periodic Table Quiz: Can You Guess the Element from Its Chemical Symbol?

How much did you remember from your high school chemistry class?



Can You Pass This Quiz of 4th Grade Spelling Words?

How many can you get right? No peeking at a dictionary for this surprisingly tricky 4th grade spelling words quiz.


How Many Squares Do You See in This Puzzle?

How many squares do you see? Hint: There are way more than meets the eye!


10 Sudoku Tips That’ll Help You Win

Whether you are ready to learn how to play Sudoku or consider yourself a puzzle master, here are Sudoku tips,...