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.
Given five clues, each with a 3 digit code and hints on correct digits and placements. Real challenge: Open the number lock using first four clues.
Three cards, a king, a queen and a nine are face down on a table. One a spade, one a club and one a diamond, not necessarily in the same order...Read on...
Three men with different skin colors wearing color matched shoes swapped their shoes, each now wearing shoes of the other two. How to know what each wore?
Ajay explained, "I have put a hundred nuts in these five bags. In the first and second bags there are a total 43 nuts, in second and third bags...Read on...
When the big hand of a clock stood at 12, an ant started walking anti-clockwise from mark 6 along the path of the clock hand. After meeting...Read on...
Find six numbers with difference between each pair of consecutive numbers constant. The condition in this puzzle is to use only 3 digits in the six numbers.
Two cars started from same point at the same time, moving at constant speeds. If one car passed the other 1 km from start, where will be the second passing?
If 999,919 mice were killed by a number of cats and each cat killed equal number of mice, then what can be the number of cats?
What number added to 100 and 164 separately will make perfect squares each time? Support with math logic and deductive reasoning.
If one-fifth of a hive of bees flew to the Lavender flowers, one-third flew to the Sunflowers, three times the difference of these two...Read on...
