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spring
Puzzle classics
Puzzle classics with interactive A, B, C, D buttons
Puzzle classics
Puzzle classics with interactive A, B, C, D buttons
#19
Nov 30, 2021
How many squares are on a chessboard?Don't rush while answering!
#18
Nov 29, 2021
A young craftsman is deep in thought. He has 5 short pieces of chain that must be joined into a long chain. Opening ring 3 (first operation) and linking it to ring 4 (second operation), then unfasteni...
#17
Nov 28, 2021
One morning a Buddhist monk sets out at sunrise to climb a path up the mountain to reach a glittering temple at the summit. The narrow path, no more than a foot or two wide, spirals around the mountai...
#16
Nov 27, 2021
In a family, each sibling has at least one brother and one sister.What is the smallest possible number of children in such a family?
#15
Nov 27, 2021
Using only a drafting triangle and a pencil it is possible to find the center of a circle.How many times will you need to change the position of the drafting triangle to reach the goal? The initial pl...
#14
Nov 27, 2021
Suppose you have a broken 12-hour digital clock that has its display turned on only when the number of hours is the same as the number of minutes - 08:08, 09:09, 10:10, and so on. What is the minimum ...
#13
Nov 24, 2021
Every day water lilies in a pond double in size. They will cover the entire surface of the pond in 48 days.In how many days will they cover half of the pond's surface?
#12
Nov 24, 2021
Three kinds of apples are mixed in a box.How many apples must you take to be sure of:A) At least 2 apples of one kind?B) At least 3 apples of one kind?
#10
Nov 21, 2021
A flock of geese was flying in the sky, as suddenly one goose flew towards them. “Hello, a flock of hundred!” - he greeted them. “We are not a hundred” - replied the leader of the flock. “If there wer...
#9
Nov 20, 2021
What arithmetic symbol can we place between 2 and 3 to make a number greater than 2 but less than 3?The name of the symbol starts with...
#8
Nov 19, 2021
6 glasses, 3 full and 3 empty ones are lined up as is shown.Make the glasses alternate full-empty-full-empty-full-empty by moving only ONE of them.Which one it should be?
#6
Nov 17, 2021
Three identical boxes are placed on a table. One contains 2 black balls inside, the other one - one black and one white ball, while the 3rd one - 2 white ones. Also, there are respective labels on eac...
#5
Nov 16, 2021
Before allowing his grandchildren eat the lollypops he just bought, the grandpa posed a challenge to divide the lollypops into 2 parts, so that the smaller part, multiplied by 4, would be equal to the...
#4
Nov 16, 2021
Mom keeps Jason’s 50 red and 50 green socks in a big box. Mixed, not sorted. On a day Jason is in rush, the light went down in the wardrobe. What is the minimum number of socks Jason has to grab from ...
#3
Nov 14, 2021
When my father was 31 I was 8. Now he is twice as old as I am. How old am I?
#2
Nov 13, 2021
A bottle and cork cost $1.10. The bottle costs a dollar more than the cork. How much does the cork cost?
#1
Nov 12, 2021
A flock of ducks was flying in the sky. One in front, two behind; one behind and two in front; one between two; and three in a row.How many ducks were in the flock?
#19
|
Nov 30, 2021
How many squares are on a chessboard?Don't rush while answering!
#18
|
Nov 29, 2021
A young craftsman is deep in thought. He has 5 short pieces of chain that must be joined into a long chain. Opening ring 3 (first operation) and linking it to ring 4 (second operation), then unfasteni...
#17
|
Nov 28, 2021
One morning a Buddhist monk sets out at sunrise to climb a path up the mountain to reach a glittering temple at the summit. The narrow path, no more than a foot or two wide, spirals around the mountai...
#16
|
Nov 27, 2021
In a family, each sibling has at least one brother and one sister.What is the smallest possible number of children in such a family?
#15
|
Nov 27, 2021
Using only a drafting triangle and a pencil it is possible to find the center of a circle.How many times will you need to change the position of the drafting triangle to reach the goal? The initial pl...
#14
|
Nov 27, 2021
Suppose you have a broken 12-hour digital clock that has its display turned on only when the number of hours is the same as the number of minutes - 08:08, 09:09, 10:10, and so on. What is the minimum ...
#13
|
Nov 24, 2021
Every day water lilies in a pond double in size. They will cover the entire surface of the pond in 48 days.In how many days will they cover half of the pond's surface?
#12
|
Nov 24, 2021
Three kinds of apples are mixed in a box.How many apples must you take to be sure of:A) At least 2 apples of one kind?B) At least 3 apples of one kind?
#10
|
Nov 21, 2021
A flock of geese was flying in the sky, as suddenly one goose flew towards them. “Hello, a flock of hundred!” - he greeted them. “We are not a hundred” - replied the leader of the flock. “If there wer...
#9
|
Nov 20, 2021
What arithmetic symbol can we place between 2 and 3 to make a number greater than 2 but less than 3?The name of the symbol starts with...
#8
|
Nov 19, 2021
6 glasses, 3 full and 3 empty ones are lined up as is shown.Make the glasses alternate full-empty-full-empty-full-empty by moving only ONE of them.Which one it should be?
#6
|
Nov 17, 2021
Three identical boxes are placed on a table. One contains 2 black balls inside, the other one - one black and one white ball, while the 3rd one - 2 white ones. Also, there are respective labels on eac...
#5
|
Nov 16, 2021
Before allowing his grandchildren eat the lollypops he just bought, the grandpa posed a challenge to divide the lollypops into 2 parts, so that the smaller part, multiplied by 4, would be equal to the...
#4
|
Nov 16, 2021
Mom keeps Jason’s 50 red and 50 green socks in a big box. Mixed, not sorted. On a day Jason is in rush, the light went down in the wardrobe. What is the minimum number of socks Jason has to grab from ...
#3
|
Nov 14, 2021
When my father was 31 I was 8. Now he is twice as old as I am. How old am I?
#2
|
Nov 13, 2021
A bottle and cork cost $1.10. The bottle costs a dollar more than the cork. How much does the cork cost?
#1
|
Nov 12, 2021
A flock of ducks was flying in the sky. One in front, two behind; one behind and two in front; one between two; and three in a row.How many ducks were in the flock?
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:- A Chessboard and Grains of Rice
- The 1st Riddle of the Sphinx
- The 2nd Riddle of the Sphinx
- The Wolf, Goat and Cabbage Challenge
Enjoy both the solving and the recognition processes of these “good old” mind puzzlers!