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Top 10 Brain Teasers of All Time

We've put together a list of the coolest and most diverse free brain teasers and riddles you're likely to come across and yes the answers are there if you get stuck. They'll test different aspects of creativity, intuition and provide insight into your problem solving abilities. Before you get started take a look at our top 3 tips to improve your chances at solving these riddles and don't forget to have fun!
If you decide you've given the teaser enough of a try but still can't crack it come back tomorrow after sleeping on it or simply hit 'Answer' to reveal the solution.

Test your brain with these brain teasers

  1. A numbers riddle

  2. Children aged between 4 and 6 can solve this problem in less than 5 minutes. Can you?

    8898=7
    4566=2
    1203=1
    2313=0
    4566=2
    5464=1
    7774=0
    1003=2
    9856=4
    9955=2
    1886=5
    1231=0
    8764=3


    4500=


    Answer: INCORRECT!
    Submit Answer
    I Give Up

  3. Sing me a Song Riddle

  4. Sing me a song riddle

    The clever butler needed some extra cash, so he tells his master:
    "I know almost every song that has ever been written"

    The master laughs at this, but the butler says
    "I am willing to bet you a months pay that I can sing a song that you have heard of with the lady's name of your choice in it."

    "Deal", says the master. "How about my mother's name, Felicity Jane Ashley?"

    And so the bulter sang and earned himself an extra months pay.

    What song did he sing?


    Answer: INCORRECT!
    Submit Answer
    I Give Up

  5. Lily Patch

  6. Lily patches

    In a lake, there is a patch of lily pads. Every day, the patch doubles in size. If it takes 48 days for the patch to cover the entire lake, how long would it take for the patch to cover half the lake?


    Answer: INCORRECT!
    Submit Answer
    I Give Up

  7. Cottage, Swiss, Cake

  8. Can you think of a word associated with all three of these words:
    cottage, Swiss, cake


    Answer: INCORRECT!
    Submit Answer
    I Give Up

  9. Machines making Widgets

  10. If it takes 5 machines 5 minutes to make 5 widgets, how long would it take 100 machines to make 100 widgets?


    Answer: INCORRECT!
    Submit Answer
    I Give Up

  11. All Roses Brain Teaser

  12. Red roses riddle

    All roses are flowers.
    Some flowers fade quickly.
    Therefore some roses fade quickly.

    True of False?


    Answer: INCORRECT!
    Submit Answer
    I Give Up

  13. Bat and Ball Riddle

  14. Baseball bat and ball

    A bat and a ball cost $1.10. The bat costs one dollar more than the ball. How much does the ball cost?


    Answer: INCORRECT!
    Submit Answer
    I Give Up

  15. Maple Syrup Spy RIddle

  16. Maple Syrup riddle

    A German spy was in Canada trying to steal insider information on how to set up new Maple Syrup factories in Germany. He was being introduced to the operations manager of the biggest factory in Canada.

    However the manager was suspicious and decided to test him with a question before he trusted him. So he asked, what would you be sure to find in the middle of Toronto?

    The spy thought fast and came up with an answer for the manager.

    What did he say?


    Answer: INCORRECT!
    Submit Answer
    I Give Up

  17. Fruity Maths

  18. Lady standing at a counter

    A farmer in Australia grows a beautiful pear tree, which he harvests to supply fruit to all the nearby grocery stores.

    One of the store owners has called the farmer to see how much fruit is available that he can buy. Unfortunately the farmer isn't currently near the tree, so he has to work it out in his head.

    He knows that the main trunk of the tree has 24 branches. That each branch has 12 boughs and that each bough has only got 6 twigs. Each one of these twigs bears one piece of fruit, so how many plums will he be able to sell to the store owner?


    Answer: INCORRECT!
    Submit Answer
    I Give Up

  19. Are You Crazy?

  20. A mental asylum brain teaser

    During a visit to a mental asylum, a visitor asked the Director what the criteria is that defines if a patient should be admitted.

    "Well," said the Director, "we fill up a bathtub. Then we offer a teaspoon, a teacup, and a bucket to the patient and ask the patient to empty the bathtub."

    Okay, here's your test: Would you use the spoon, the teacup or the bucket?

    "Oh, I understand," said the visitor. "A normal person would choose the bucket, as it is larger than the spoon."

    What was the director's response?


    Answer: INCORRECT!
    Submit Answer
    I Give Up

3 Tips to help you answer:

  1. Relax
  2. These are creatively minded questions. Creativity relies upon right brain thinking. Research has shown the dorsolateral prefrontal cortex which is responsible for inhibition is not active in very creatively minded individuals like jazz musicians. Let go, meditate and breathe.

  3. Don't trust your brain
  4. Our brains have evolved to see problems and quickly formulate intuitive answers. It's an efficient way to solve problems and save time. Unfortunately these intuitive answers are often wrong. Spend a few seconds to test your answers. You might be surprised at what you overlooked.

  5. Go for a walk
  6. How many times have you given up on a problem you've concentrated intensely on only to have a breakthrough while in the shower or walking down the street?

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