Riddles

Riddles

  1. I am the owner of a bird store. If I put in one bird per cage, I have one bird too many. If I put in two birds per cage, I have one cage too many. How many cages and birds do I have?

    Four birds and three cages.If you put one bird in each cage, you have an extra bird without a cage. However, if you put two birds in each cage then you have two birds in the first cage, two birds in the second cage and an extra cage.


  2. A cube of side 4cm is painted with 3 colors red, blue and green in such a way that opposite sides are painted in the same color. This cube is now cut into 64 cubes of equal size. How many have at least two sides painted in different colors. How many cubes have only one side painted. How many cubes have no side painted.

    Cubes that have at least two sides painted in different colors are 24 + 8 = 32.
    Cubes that have only one side painted are 24.
    Cubes that have no side painted = 8.
    Cubes that have exactly one side not painted = 0.


  3. You have two buckets - one holds exactly 5 gallons and the other 3 gallons. How can you measure 4 gallons of water into the 5 gallon bucket? (Assume you have an unlimited supply of water and that there are no measurement markings of any kind on the buckets.)

    1. Fill the 3-gallon bucket.
    2. Pour the 3 gallons of water into the 5-gallon bucket.
    3. Fill the 3-gallon bucket again.
    4. Fill up the 5-gallon bucket with the 3-gallon bucket, leaving you with 1 gallon left in the 3-gallon bucket.
    5. Empty out the 5-gallon bucket.
    6. Pour the remaining 1 gallon of water from the 3-gallon bucket into the 5-gallon bucket.
    7. Fill the 3-gallon bucket.
    8. Pour the 3 gallons of water from the 3-gallon bucket into the 5-gallon bucket leaving you with 4 gallons of water in the 5-gallon bucket.


  4. You are given eight coins and told that one of them is counterfeit. The counterfeit one is slightly heavier than the other seven. Otherwise, the coins look identical. Using a simple balance scale, can you determine which coin is counterfeit using the scale only twice?

    First weigh three coins against three others. If the weights are equal, weigh the remaining two against each other. The heavier one is the counterfeit. If one of the groups of three is heavier, weigh two of those coins against each other. If one is heavier, it's the counterfeit. If they have equal weight, the third coin is the counterfeit.


  5. My daughter has many sisters. She has as many sisters as she has brothers. Each of her brothers has twice as many sisters as brothers. How many sons and daughters do I have?

    Four daughters and three sons.


  6. A man can make perfect counterfeit bills. They look exactly like real ones, they're made of exactly the same materials, made the same way, everything. So perfect, one could pretty much call them real bills. One day he successfully makes a perfect copy of another bill. However, he gets caught when he tries to use the copy. How is this possible?

    He made a perfect copy of a counterfeit bill.


  7. During WWII, there was a bridge connecting Germany and Switzerland, and on the German side, there was a sentry tower with a guard in it. He would come out every three minutes to check on the bridge, and he had orders to turn back anyone who tried to get into Germany, and shoot anyone trying to escape without a pass. There was a woman who desperately needed to get into Switzerland, and she knew she didn't have time to get a pass. It would take her at least six minutes to cross the bridge, but she managed to do it. How?

    She walked on the bridge towards Switzerland for 3 minutes and just as the guard was about to come out, she turned around walking back to Germany. The guard saw her and asked for her pass but she didn't have one and was sent back (or what the guard thought was back) to Switzerland. In her case it was the very country she wanted to go to.


  8. An Arab sheikh tells his two sons to race their camels to a distant city to see who will inherit his fortune. The one whose camel is slower will win. The brothers, after wandering aimlessly for days, ask a wise man for advise. After hearing the advice they jump on the camels and race as fast as they can to the city. What does the wise man say?

    The wise man tells them to switch camels.


  9. In a small cabin in the woods, two men lay dead. The cabin itself is not burned, but the forest all around is burned to cinders. How did the men die?

    It's the cabin of a plane and the plane crashed.


  10. Why is it very common to have a 9 minute snooze interval on alarm clocks, why not 10 instead?

    By setting the snooze time to 9 minutes, the alarm clock only needs to watch the last digit of the time. So, if you hit snooze at 6.45, the alarm goes off again when the last digit equals 4. They couldn't make it 10 minutes, otherwise the alarm would go off right away, or it would take more circuitry.


 
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