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.
Meet the challenge and crack the code to open the number lock. More challenge - solve the hard 5 digit number lock puzzle using least number of clues.
Challenge yourself to crack the code and open the 3 digit number lock using least number of clues. Time to solve the number lock puzzle is 10 mins.
An officer and 269 soldiers in his army detachment are to cross a river. Two boys are rowing about in the river in a small boat. The boat is...read on...
Encrypted Arithmetic puzzle of addition: EAT and THAT are added to produce the result APPLE. Each letter is a different number. Find the letters values.
Math Olympiad Question: 2a + 2b + 2c = 148, a, b, c = ?. Can you solve in 2 minutes? Use basic math concepts and reasoning.
You have to crack the five number lock puzzle codes with 241 in one clue. Each clue includes a 3 digit code and correctness of digit positions.
Seven clues are given, each with a 4 digit code and hints on correct digits and their placements. Find the correct code from the clues to open the lock.
Given five clues, each with a 5 digit code and hints on correct digits and their placements, can you find the correct code from the clues to open the lock?
In this number lock puzzle with 5 clues including 682 in code, each clue describes position and correctness of 3 digits in its code. Can you crack the code?
Given three clues, each with a 3 digit code and hints on correct digits and their placements. Find the correct number lock code from the clues.
