HARD RIDDLES

Fun Facts (Hints)

Hard riddles are universal, and continue to leave a lasting impression on many different cultures across the globe. Here are some interesting facts:
  • The mere definition of what a riddle is, is something that has drawn a large amount of debate between scholars for centuries.
  • Complex riddles have been used since ancient times, and extensively in ancient/medieval literature.
  • There is only one riddle in the Bible appearing in the book of Judges. It is known as "Samson's riddle."
  • Charades is a popular contemporary game created with the use of riddle.
  • In author J. R. R. Tolkien's 'The Hobbit' Bilbo Baggins is given a challenging riddle by Gollum, and his life was dependent upon getting the correct answer.
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    Riddles and Answers © 2021

    Five Rows Of Four Christmas Trees Riddle

    Hint:
    Just imagine a 5 pointed star, and then plant one tree at each point, and one tree where the sides intersect.

    There are actually several distinct solutions. All of them can be constructed as follows:

    Draw a nice long straight line.
    Draw a second straight line that intersects the first.
    Draw three more straight lines making sure each line intersects all the lines youve already drawn and avoiding any of the previous points of intersection. That is, no three lines should intersect at the same point.

    With the first four lines, theres only one topologically distinct configuration, but by varying the position of the fifth line, several different distinct configurations can be created.
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    A Train Leaves From Halifax Riddle

    Hint:
    Both trains would be at the same spot when they meet therefore they are both equally close to Halifax.
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    An Island That Has 3 Gods

    Hint:
    Question 1: (To any of the three gods) If I were to ask you "Is that the random god," would your answer be "ja?" (This questions, no matter the answer, will enable you to tell which god is not random i.e. the god who is either False or True)

    Question 2: (To either the True or False god) If I asked you "are you false," would your answer be "ja?"

    Question 3: (To the same god you asked the second question) If I asked you "whether the first god I spoke to is random," would your answer be "ja?"
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    Fooled By Thunder

    Hint:
    Stampede
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    Under The Cup Riddle

    Hint: Write down the possibilities. Remember that there are only three cups, so if the rightmost cup wasn't touched...
    The rightmost cup.

    The rightmost cup has a half chance of holding the coin, and the other cups have a quarter chance.

    Pretend that Os represent cups, and Q represents the cup with the coin.

    The game starts like this:

    OOQ

    Then your friend switches the rightmost cup with another, giving two possibilities, with equal chance:

    OQO
    QOO

    Your friend then moves the cups again, but doesn't touch the rightmost cup. The only switch possible is with the leftmost cup and the middle cup. This gives two possibilities with equal chance:

    QOO
    OQO

    Lastly, your friend switches the rightmost cup with another cup. If the first possibility shown above was true, there would be two possibilities, with equal chance:

    OOQ
    QOO

    If the second possibility shown above (In the second switch) was true, there would be two possibilities with equal chance:

    OOQ
    OQO

    This means there are four possibilities altogether, with equal chance:

    OOQ
    QOO
    OOQ
    OQO

    This means each possibility equals to a quarter chance, and because there are two possibilities with the rightmost cup having the coin, there is a half chance that the coin is there.
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    Dropping Coconuts Riddle

    Hint: They break when dropped from the same height and they don't weaken from getting dropped.
    You could drop it at floor 1 first (because you start at floor 1). Then you would go to the floors: 14, 27, 39, 50, 60, 69, 77, 84, 90, 95, 99, and 100. Whatever floor your first coconut breaks at, go to the floor above the last floor the coconut survived and drop the second coconut from this floor. Then go up by one floor until the second coconut breaks and that is the lowest floor it will break at.
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    Coconut Sentence Riddle

    Hint: Listen closely...
    This.

    If 'this' is a coconut, and 'that' is a coconut, then 'is' 'this' a coconut.
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    The Weight Of A Melon Riddle

    Hint: We are to determine X the total mass of melon after the drying. The Dry weight, DW is 1lb both before and after the drying. The New Water weight, WNW is clearly X - DW or X - 1
    50 lbs.
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    Give Me Food And I Will Live Give Me Water And I Will Die

    Hint:
    A fire.
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    Prince Age Riddle

    Hint:
    Current Future Past

    Princess x 2z (x+y)/2
    Prince y x z

    I then created three equations, since the difference in their age will always be the same.

    d = the difference in ages

    x y = d
    2z x = d
    x/2 + y/2 z = d

    I then created a matrix and solved it using row reduction.

    x y z

    1 -1 0 d
    -1 0 2 d
    .5 .5 -1 d

    It reduced to:

    x y z

    1 0 0 4d
    0 1 0 3d
    0 0 1 5d/2

    This means that you can pick any difference you want (an even one presumably because you want integer ages).

    Princess age: 4d
    Prince age: 3d

    Ages that work

    Princess:
    4
    8
    16
    24
    32
    40
    48
    56
    64
    72
    80

    Prince:
    3
    6
    12
    18
    24
    30
    36
    42
    48
    54
    60
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    Missing Dollar Riddle

    Hint: Make a list of all of the people involved and how much money they ended up with/spent.
    The $9 paid by each guest accounts for the $2 that went to the bellhop. So rather than adding $27 to the $2 kept by the bellhop, the $27 accounts for the bellhops money. The $27 plus the $3 kept by the guests does add up to $30.
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    Rope Burn Riddle

    Hint: You can light multiple ends and/or multiple ropes at the exact same time.
    Light both ends of one rope, and only one end of the other rope. This will cause the first rope to burn out in 30 minutes. When the first rope burns out, there will be 30 minutes left on the second rope. So then, light the other end of the second rope, and the rest of it will burn out in 15 minutes. 30 + 15 = 45 minutes.
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    Intertwining Dimensions Riddle

    Hint:
    The Star of David
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    What Comes Next Riddle

    Hint:
    E. Each item is the first letter(s) of one of the seven continents:

    1. Asia
    2. North America
    3. Africa
    4. South America
    5. Australia
    6. Antarctica
    7. Europe
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    I Smash Others Riddle

    Hint:
    Cue. A cue tells you when to start, or if you forget your lines in a play. A cue ball is used to break at the beginning of a game of pool and the cue stick is used to push the cue ball on the break.
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    Post Your Hard Riddles Below

    Can you come up with a cool, funny or clever Hard Riddles of your own? Post it below (without the answer) to see if you can stump our users.
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