Puzzle Classics Online

Puzzle classics

Puzzle classics with interactive A, B, C, D buttons

 

Puzzle classics

Puzzle classics with interactive A, B, C, D buttons

 
Not a Nickel
#179 Sep 01, 2023
In my hand, I have two coins that are newly minted. Together, they total 30 cents. One isn’t a nickel. How come?
Running Competition
#178 Jul 24, 2022
Suppose you are in a running competition and you have just overtaken the 2nd runner. What place are you currently at in the competition?
A Pencil Challenge
#177 Jun 30, 2022
How many edges does a hexagonal pencil have?
Farmer & Apples
#176 Jun 08, 2022
Jim the Farmer came to the market to sell apples. The 1st buyer bought half of all the apples and another half an apple. The 2nd buyer bought half of what was left and also half an apple. The 3rd buye...
A Herd of Cows
#175 Jun 07, 2022
A mathematician counted 70 cows in the pasture. “What part of the whole herd are these cows?” - the mathematician asked the shepherd. “I brought in two-thirds of the third of the whole herd to graze,”...
Taking More, Growing More
#174 May 28, 2022
The more you take out of it, the bigger it becomes. What are the three letters it consists of?
Doctor’s Son
#173 May 26, 2022
A boy is walking down the road with a doctor. While the boy is the doctor’s son, the doctor is not the boy’s father.Which of these is true? The related person starts with the letter...
GTNTL...
#172 May 21, 2022
Guess the next three letters in the series GTNTL
300 to 400
#171 May 19, 2022
If you wrote all of the numbers from 300 to 400 on a piece of paper, how many times would you have written the number 3?
Minute, Moment, Thousand Years
#170 May 18, 2022
What can be seen once in a minute, twice in a moment, and never in a 1,000 years?
Around the World
#169 May 16, 2022
What can travel around the world while staying in one corner?
Full of Keys
#168 May 14, 2022
What has 88 keys but can’t open a single lock?Its keys are...
What's Before Me?
#167 May 13, 2022
Turn me on my side and I am everything. Cut me in half and I am nothing. What comes before me...
20 Dots: How Many Squares?
#166 Apr 27, 2022
How many different squares are indicated by four dots that mark their corners?
How Many Pentagons?
#165 Apr 26, 2022
How many different pentagons are in this shape?
How Many Squares? Part 2
#164 Apr 25, 2022
How many squares are in this shape?
How Many Squares? Part 1
#163 Apr 24, 2022
How many squares are in this shape?
12 Dots: How Many Squares?
#162 Apr 24, 2022
How many different squares are indicated by four dots that mark their corners?
Puzzling Scales. Part 1
#161 Apr 22, 2022
Solve this famous Sam Loyd's Puzzle.1 Top + 3 Cubes = 12 Marbles.1 Top = 1 Cube + 8 Marbles.How many Marbles are needed to balance the Top?
How Many Triangles? Part 4
#160 Apr 21, 2022
How many triangles are in this shape?
 
 
Not a Nickel
#179 | Sep 01, 2023
In my hand, I have two coins that are newly minted. Together, they total 30 cents. One isn’t a nickel. How come?
 
 
Running Competition
#178 | Jul 24, 2022
Suppose you are in a running competition and you have just overtaken the 2nd runner. What place are you currently at in the competition?
 
 
A Pencil Challenge
#177 | Jun 30, 2022
How many edges does a hexagonal pencil have?
 
 
Farmer & Apples
#176 | Jun 08, 2022
Jim the Farmer came to the market to sell apples. The 1st buyer bought half of all the apples and another half an apple. The 2nd buyer bought half of what was left and also half an apple. The 3rd buye...
 
 
A Herd of Cows
#175 | Jun 07, 2022
A mathematician counted 70 cows in the pasture. “What part of the whole herd are these cows?” - the mathematician asked the shepherd. “I brought in two-thirds of the third of the whole herd to graze,”...
 
 
Taking More, Growing More
#174 | May 28, 2022
The more you take out of it, the bigger it becomes. What are the three letters it consists of?
 
 
Doctor’s Son
#173 | May 26, 2022
A boy is walking down the road with a doctor. While the boy is the doctor’s son, the doctor is not the boy’s father.Which of these is true? The related person starts with the letter...
 
 
GTNTL...
#172 | May 21, 2022
Guess the next three letters in the series GTNTL
 
 
300 to 400
#171 | May 19, 2022
If you wrote all of the numbers from 300 to 400 on a piece of paper, how many times would you have written the number 3?
 
 
Minute, Moment, Thousand Years
#170 | May 18, 2022
What can be seen once in a minute, twice in a moment, and never in a 1,000 years?
 
 
Around the World
#169 | May 16, 2022
What can travel around the world while staying in one corner?
 
 
Full of Keys
#168 | May 14, 2022
What has 88 keys but can’t open a single lock?Its keys are...
 
 
What's Before Me?
#167 | May 13, 2022
Turn me on my side and I am everything. Cut me in half and I am nothing. What comes before me...
 
 
20 Dots: How Many Squares?
#166 | Apr 27, 2022
How many different squares are indicated by four dots that mark their corners?
 
 
How Many Pentagons?
#165 | Apr 26, 2022
How many different pentagons are in this shape?
 
 
How Many Squares? Part 2
#164 | Apr 25, 2022
How many squares are in this shape?
 
 
How Many Squares? Part 1
#163 | Apr 24, 2022
How many squares are in this shape?
 
 
12 Dots: How Many Squares?
#162 | Apr 24, 2022
How many different squares are indicated by four dots that mark their corners?
 
 
Puzzling Scales. Part 1
#161 | Apr 22, 2022
Solve this famous Sam Loyd's Puzzle.1 Top + 3 Cubes = 12 Marbles.1 Top = 1 Cube + 8 Marbles.How many Marbles are needed to balance the Top?
 
 
How Many Triangles? Part 4
#160 | Apr 21, 2022
How many triangles are in this shape?

1 2 3 4 5 6 7 8 9

We’ve gathered a collection of the most “classic” brainteasers which survived through years and continents. We’ve added visuals and some options for your convenience to solve them online. You will recognize a lot of them, though some of these brain teaser puzzles can happen to appear rather “new” to you due to the twist(s) in their particular interpretation(s).


Among the brain teasers in this collection you will find lateral thinking puzzles, visual puzzles, spatial puzzles, lateral thinking puzzles, logic puzzles and much more.


A good portion is about math riddles. A bunch of geometry puzzles.


Among the best brain teaser puzzles you would find such classics as:

- Eight Queens Puzzle

- A Chessboard and Grains of Rice

- Hotel Guests and Extra $1

- The 1st Riddle of the Sphinx

- The 2nd Riddle of the Sphinx

- Six Glasses Problem

- Dissecting a Horseshoe

- The Wolf, Goat and Cabbage Challenge


Enjoy both the solving and the recognition processes of these “good old” mind puzzlers!