For each one, first the puzzle is posed for you to solve within a recommended time. A detailed systematic solution then follows.
Matchstick puzzles, riddles, math puzzles, logic puzzles, river crossing puzzles, ball weighing puzzles are some of the categories.
The full list of all brain teasers with solutions is available in the link,
Challenging brain teasers with solutions: Long list.
This will always be the most up-to-date list with the brain teasers classified into categories that can be browsed separately.
In ten barrel face number riddle, rearrange ten barrels in a pyramid so that sum of face numbers of four barrels on each outer side is equal and minimum.
Two circles and a line riddle: Can you traverse all parts of the puzzle figure without lifting your pencil or crossing a line? Time to solve: 15 minutes.
In the puzzle figure, move 3 matches to make 7 squares. You have 5 minutes to solve the puzzle. And know how to solve easily from the solution.
The number lock puzzle has 5 Clues on 3 digit codes as hints. From the Clues, find the correct 3 digit code to open the lock. Time to solve 10 mins.
Can you find the 3 digit number lock code from five Clues each based on a code and a placement description? Solve using least number of Clues in 10 minutes.
Discover the secret to solving Connect the Nine Dots Riddle with our detailed step-by-step guide. Master Problem-solving skills and Inventive thinking.
Add 9 matches to make 8 nodes in the puzzle figure of a triangle of 3 nodes made up of 3 matchsticks. Time to solve: 5 minutes. Try applying reason.
Can you find the code to open the 3 digit number lock from the five clues each with a code and placement description? Go for the most efficient solution.
In matchstick figure, remove 3 matches and leave 3 triangles. You have 10 minutes to solve the puzzle. Try and then learn how to solve from solution.
In puzzle figure, move 2 matches to make 3 triangles with no match unattached to any triangle. Solve in 5 minutes. Learn how to solve easily from solution.
