Puzzles & Riddles

Brain Teasers

  • Today's Daily Brain Teaser (May 20, 2018)
    on 20/05/2018 at 12:00 am

    Up and Down The bottom heats, The top cools, And little blobs Swim in my pools I can be different colours, And be a source of light, A bedroom accessory, I light up the night! What am I? Check Braingle.com for the answer. […]

  • Today's Daily Trivia Quiz (May 20, 2018)
    on 20/05/2018 at 12:00 am

    TV Cops & Crime Shows Columbo-philes and lollipop totin' Kojak lovers, this is your quiz. Ready? Book 'em, Dan-O. Take the Quiz at Braingle.com […]

  • Vocabulary : Word of the Day : Churlish
    on 20/05/2018 at 12:00 am

    churl-ish adj :: Marked by a lack of civility or graciousness. Surly. "Being stuck in traffic makes some people act in a churlish manner." […]

  • Creativity : Letter to Yourself
    on 18/05/2018 at 12:00 am

    When you let your conscious mind take a break from a task, your subconscious mind continues to process the information in the background. Sometimes, insightful ideas will flash into your mind. To encourage this, you can try this exercise. Sit down and write a letter to yourself about the problem you are working on. Pretend that you are writing the letter to someone who knows nothing about the project; give a good description, including everything that you have done to date. Be as detailed as possible. Don't forget to mention any constraints that are imposed on the problem and what types of solutions are preferred. Then, give your subconscious a deadline. For example, you could write, "I expect a full report by the end of the week!" It may seem silly to write to yourself in this way, but give it a try. Now close up the letter and put it away. Unbeknownst to you, your subconscious will continue to think about the problem. When the deadline approaches, open up the letter and read it. Chances are that by that point (or possibly earlier) you will have experienced a flash of insight that illuminates a potential solution. […]

  • Memory : Use it or Lose it
    on 18/05/2018 at 12:00 am

    Previously, we learned how natural brain deterioration is mostly caused because of disuse. If a neural pathway is not activated from time to time, it will slowly diminish in strength until the memory is no longer recoverable. Having a rigid daily routine is a sure way to make sure your brain doesn't have to think very much. To keep your memory intact, make sure that you use it on a daily basis. Vary your routines, do the crossword, or try memory games to keep your brain active. […]

Logic Riddles

  • Heads – tails
    by SmartestBrain.com on 23/08/2010 at 7:45 am

    As it often happens in life evil warlock imprisoned a wise man. Surprisingly he gave him a chance to save himself if he fulfils one task. There is a round tray on the table which can be turned around freely. There are four coins on the tray placed as corners of a square. Wiseman has his eyes covered so he doesn’t see anything. His task is to turn the coins so that they are all heads up. He is not in easy situation. He may turn some coins and than the warlock will turn the tray around. He turns some coins again warlock turns the tray again. It goes on until all coins are turned correctly. At that moment evil warlock ends the game. Wiseman can’t recognize one side from the other by touching it. He has to leave the coins where they were in the corners of a square. And mainly – because of the evil magic – he has the worst luck so if he relies just on chance he will never fulfill the task. […]

  • Prisoners
    by SmartestBrain.com on 16/08/2010 at 7:33 am

    Prison guards are bored so during dinner they announce the prisoners that they will play a game: In the morning they will stand in a line so that every prisoner will see all standing in front of him but no one behind him. Guards will randomly paint red or white stripe on their back. They will ask prisoners one by one from the last to the first. They will be allowed to say just one word “red” or “white”. If the prisoner says the color he has on his back he may go home in opposite case he will be executed without delay. The prisoners are in one cell during the night and they can discuss the tactics. Which is the best? How many will survive? […]

  • Three Chinamen
    by SmartestBrain.com on 09/08/2010 at 6:52 am

    There are three Chinese guys sleeping in a hotel room. Someone paints their faces with black color during the night. When they wake up in the morning they look at each other and all start laughing. If one of them realizes he is black too he stops laughing. Because they are all smart and they know it about each other one of them will realize it soon. How did he find out? Just realize that if two friends are dirty it means that I am too. If I see two laughing dirty guys it doesn’t mean that I’m dirty too they might be laughing at each other and I might be clean. Chinese didn’t point or say anything. […]

  • Trail
    by SmartestBrain.com on 03/08/2010 at 6:48 am

    You are sentenced at court. Judge is a fair guy so he offers you following: “You can say one sentence to defend yourself. If you lie we will hang you. If you tell us the truth we will shoot you.” What will you say? […]

  • Mother-in-law
    by SmartestBrain.com on 19/07/2010 at 6:32 am

    Man comes home and what does he see? Mother-in-law came over. I don’t know how but they started a fight. About what is not important at all. ... Mother-in-law: You just lie all the time. Man: No way... Mother-in-law: You don’t tell a sentence without lying! Man: Don’t be ridiculous! Mother-in-law: Let’s try it: tell me one true sentence. Man: Ok but you will get out after. Mother-in-law: If you tell me true sentence I’ll go but if you will lie again I will stay. I promise I will! Man thought for a while and than told her one sentence. Mother-in-law suddenly realized that to keep her promise she has to hang herself. What did the man tell her? […]

  • Riddle #4043
    on 06/05/2018 at 4:00 am

    What is the only place you leave without entering it? […]

  • Riddle #4042
    on 12/04/2018 at 2:47 am

    I move faster in certain solids, but slower in certain gases. I am typically broken by objects with large masses. I can be used as for pleasure, practice, and even an alarm. If used excessively, I can cause harm. What am I? […]

  • Riddle #4041
    on 28/03/2018 at 7:23 pm

    Which city is the dangerous city in the world? […]

  • Riddle #4040
    on 28/03/2018 at 7:20 pm

    In Africa, a baby was born - Are the baby's teeth black or white? […]

  • Riddle #4037
    on 05/03/2018 at 4:52 pm

    Men are just as small as stars to mebut men can see me while the stars cannot.I am a reflection of the ocean and fire but never earth though without an earth you cannot have me. […]