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.
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?
The lion lies on 3 days and speaks the truth other days. The unicorn lies on 3 other days. "Yesterday I was lying", the lion told the girl. "So was I"...
A drawer has 31 black, 15 blue, and 17 red socks. Find the minimum socks you must draw with eyes closed to ensure getting at least one pair of blue socks.
Ready to challenge your thinking? Logic puzzles are a great way to exercise your brain and improve your reasoning skills. Here are three tricky ones.
Which day is today if the day before two days after the day before tomorrow is Saturday? This is a brain twister that may leave you thoroughly confused.
Test your puzzle skills on this tricky 3-letter words logic puzzle. Find the hidden word among six using just three clues! (Yes or No answers only).
The changing length repetition riddle: What is the 2012th letter in the indefinitely continuing sequence: PATTERNIDOF1STPATTERNIDOF2NDPATTERNIDOF3RD...?
Math Olympiad Question: x(x + 2)(x +4)(x + 6) = 9. Can you solve in 5 minutes? Hint: solve using mathematical deductive reasoning and basic math concepts.
In the puzzle figure of two small triangles and one large triangle, move 3 matches to form 2 large and 1 small triangle with no hanging stick.
A farmer bought 100 cows, sheep and chickens at Rs.1000. Cost of cows Rs.50 each, sheep Rs.10 each, and chickens 50 paise each. How many of each purchased?
