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.
You'll enjoy solving its 50 hand-picked puzzles, but you'll also learn how to solve hard problems easily without random attempts by innovative methods.
This is a rather long list of challenging brain teasers with solutions. The brain teasers are hand-picked and solutions focus on systematic problem solving.
Discover the foolproof solution to the classic 100 Hats Riddle using logical reasoning and teamwork. Learn how 99 out of 100 prisoners can survive!
Discover how to solve the Bridgekeeper Riddle simplifying self-referencing logic: A step-by-step guide to mastering the mind-bending classic logic puzzle.
Solve the lily pad lake riddle and experience the effect of exponential growth. Learn to think inventively to get the solution.
Find the poisoned wine bottle from 1000 similar wine bottles using 10 test strips that each change color when a drop of poisoned wine falls on it.
The Two Envelopes Paradox: A mind-bending probability puzzle. Should you switch envelopes? Discover the surprising answer and challenge your intuition.
Master the discovery process behind solving the 10 coin puzzle. Learn how to think critically and uncover the key idea leading to the elegant solution.
To be free, one of 100 blue-eyed imprisoned logicians had to correctly tell own eye color. But none can see own eye color and stayed till a visitor came.
Three light bulbs in a closed room connected to three switches outside. Switch off and on freely, enter the room once to identify the switch-bulb pairs.
