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.
A customer ordered fifteen Zingers that are to be placed in packages of four, three or one. In how many ways can this order be fulfilled?
Find all two digit sets of two or more consecutive positive integers that can be added to obtain a sum of 100. Follow a systematic approach.
Analyze the one condition and four clues each a 4 digit code with hints on right digit and right place to find the 4 digit code to open the number lock.
A thrifty shop-owner made a collection of 10 rupee, 5 rupee and 2 rupee coins. One night the shop-owner had an idea of dividing his coins into...read on...
Duorp was born in planet Urp on the first day of the fourth month on a Fourday. Each week has 5 days, each month 10 days, a year 180 days except..read on...
How to find the total when a series of fractions of the total and fractions of remainders were given in a will? The key is to use portions in the fractions.
What will be the least number of exposed cube faces when 500 cubes of side length 1 cm each are glued together in the form of a prism?
Four persons to cross a bridge in a dark night with one torch in 15 minutes. Two persons max can cross at a time. One crosses in 1 min, second in 2 mins...
Four friends Ajoy (90 kg), Biren (80 kg), Chinu (60 kg) and Dipu (40 kg) to cross a river with their supplies (20 kg) in a small boat of 100 kg capacity...
Challenge yourself with the Knight Knave and Spy logic puzzle. How many ways can you solve this liar, truth-teller, and the random-answerer puzzle?
