MATH RIDDLES

Fun Facts (Hints)

Different types of riddles have challenged people for centuries, here are a few facts about them that may give you some hints in solving these challenging questions:
  • Riddles in math are used by math teachers in many different cultures.
  • Many teachers promote the idea that giving students mathematical riddles helps to encourage their pupils to think more creatively and strategically.
  • These riddles are considered especially helpful in classrooms where students have emotional problems, as it pulls them away from their problems, and forces them to think creatively about what is before them.
  • Detectives are sometimes forced to solve riddles involving math when searching for psychopaths and serial killers.
  • Math riddles are used at home by many parents seeking to help their students become more engaged in their math schoolwork/homework.
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    Jumping Into The Bowling Water Riddle

    Hint:
    Because she wanted to test the waters!
    Did you answer this riddle correctly?
    YES  NO  

    The Sad Math Book

    Hint:
    When it is full of problems!
    Did you answer this riddle correctly?
    YES  NO  

    10 From 100 Riddle

    Hint:
    Once. Next time you would be subtracting 10 from 90.
    Did you answer this riddle correctly?
    YES  NO  

    Little Billy's Calculator

    Hint: Think about how many ways he could possibly get 6.
    There is a 4% chance.

    There are 16 possible ways to get 6.

    0+6
    1+5
    2+4
    3+3
    6+0
    5+1
    4+2
    9-3
    8-2
    7-1
    6-0
    1x6
    2x3
    6x1
    3x2
    6/1

    There are 400 possible button combinations.

    When Billy presses any number key, there are 10 possibilities; when he presses any operation key, there are 4 possibilities.

    10(1st#)x4(Operation)x10(2nd#)=400

    16 working combinations/400 possible combinations= .04 or 4%
    Did you answer this riddle correctly?
    YES  NO  

    The Gardners Riddle

    Hint:
    Gretchen said that there were 4 girls in the family, three of whom were blond.

    This would make the probability that she saw two blonds (3/4) * (2/3), which equals 1/2.

    Other numbers would work, but the next pair would lead to a rather large family.
    Did you answer this riddle correctly?
    YES  NO  

    1 + 1 = 3 Riddle

    Hint:
    When you're pregnant!
    Did you answer this riddle correctly?
    YES  NO  

    30 Sacks Of Coconuts

    Hint:
    He will have 25 coconuts with him at the end. The trick is to reduce the number of sacks as you pass checkpoints.

    The first 10 checkpoints require 3 coconuts each, which empties his first sack. The next 15 checkpoints require 2 coconuts each, which will empty his second stack. Now, he is left with 1 sack and 5 more checkpoints. So, the 5 checkpoints will take 1 coconut each. Therefore, he will be left with 25 coconuts.
    Did you answer this riddle correctly?
    YES  NO  

    100 Fruits

    Hint:
    80 Cherries, 01 Orange and 19 Watermelons.
    Did you answer this riddle correctly?
    YES  NO  

    5+5+5=550 Riddle

    Hint:
    Add a line to make the first + a 4 545+5=550
    Did you answer this riddle correctly?
    YES  NO  

    Equals Eight Riddle

    Hint:
    Mirror one of the threes and put it and the other three together to get an eight.
    Did you answer this riddle correctly?
    YES  NO  

    More Than 90 Degrees Riddle

    Hint:
    An obtuse angel
    Did you answer this riddle correctly?
    YES  NO  

    Find The Digits Riddle

    Hint:
    The required digit is 0.

    If you add up all the digits in any diagonal, you will find the sum to be 25.
    Did you answer this riddle correctly?
    YES  NO  

    Apricot Jam Riddle

    Hint:
    She counted the pits!
    Did you answer this riddle correctly?
    YES  NO  

    Bat And Ball Riddle

    Hint: The answer isn't 10 cents.
    Here's the solution:

    Although $1.00 + $0.10 does equal $1.10, if you take $1.00 $0.10 you get $0.90, but the problem requires that the bat costs $1 more than the ball.

    So, the ball must cost $0.05, and the bat must cost $1.05 since $1.05 + $0.05 = $1.10

    ---

    Still not convinced? You can use algebra to solve the problem:

    First, lets set up the equation:

    x + ($1.00 + x) = $1.10

    $1.00 + 2x = $1.10

    2x = $1.10 $1.00

    2x = $0.101

    Finally, solve for x:

    x = $0.05

    Check your work:

    x + ($1.00 + x) = $1.10, so

    $0.05 + ($1.00 + $0.05) = $1.10
    Did you answer this riddle correctly?
    YES  NO  

    King Arthur's Round Table Riddle

    Hint:
    Sir Cumference
    Did you answer this riddle correctly?
    YES  NO  

    Post Your Math Riddles Puns Below

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

    1. Why was the math book sad? Because it had too many problems.

    2. Why don’t mathematicians sunbathe at the beach? Because they use imaginary numbers.

    3. What did the math teacher say to her students on Valentine’s Day? "Let’s make some propositions!"

    4. Why do math teachers love geometry? Because it’s plane fun.

    5. Why was six afraid of seven? Because seven eight nine.

    6. Why do mathematicians love parks? Because of all the natural logarithms.

    7. What’s the best way to impress a math teacher? Multiply yourself and add your standard deviation.

    8. What do you get when you cross a math teacher and a clock? Time tables.

    9. How can you tell if a math teacher is hungry? They start talking about Pie.

    10. Did you hear about the math expert who’s afraid of negative numbers? He will stop at nothing to avoid them.

    11. How do construction workers do math? With a calculator-i!

    12. What do you get when you cross a math teacher and a train? A geometric progression.

    13. Why do math teachers love chicken? Because it’s a good source of pi protein.

    14. What did the calculus teacher say to her students who were failing? "Don’t integrate yourself into a problem that you can’t differentiate your way out of."

    15. Why was the math book sad after prom? All its angles were acute, and the book felt so…almost right-angled.

    16. What did the math teacher say to his students who were having trouble understanding fractions? "The key to understanding fractions is to pick up the pieces."

    17. Why was the geometry class always tired? Because they were constantly finding the hypotenuse.

    18. What is the plural of "summit"? Math teachers would tell you it’s "summation."

    19. What do you say when you see a math teacher eating a sandwich? Square root of ‘yum’?

    20. What do you call a number that can’t keep still? A roamin’ numeral!

    21. Why did the math professor take out a loan? To sine on the dotted line.

    22. Why couldn’t the bicycle stand up by itself? Because it was two-tired!

    23. Why did the math student fail his exam? He couldn’t solve any of the problems on the standard deviation curve.

    24. Why was the math book so tense? Because it had too many problems to solve.

    25. Why do mathematicians like stories? Because they always have a good plot and sets of numbers.

    26. Why did the math teacher go to the circus? To see the math-tractions!

    27. Why don’t mathematicians ride motorcycles? They don’t like to take chances with angles.

    28. What’s a math teacher’s favorite day of the week? Pi Day!

    29. What do you call the number 7 and the number 3 when they go on a date? A product of their times.

    30. Why did the math teacher cross the road? To get to the calculator on the other side.

    31. Why was the math book so afraid of the circle? Because it was perfectly round.

    32. What do you call a group of math teachers? Geometree.

    33. Why was the math student’s dream so vivid? Because it was linear.

    34. Why do mathematicians like nature? Because it’s full of exponential growth.

    35. What do you call a math teacher who teaches addition? A sum-thing genius.

    36. Why was the calculator feeling sad? Because it had no friends to divide by.

    37. Why did the math teacher go to the beach? To catch some rays.

    38. What do you call a math teacher who knows how to party? The Calculus of Fun.

    39. Why can’t a bike stand up by itself? Because it’s two-tired!

    40. What do you call a number that can keep a secret? A cryptonumber!

    41. Why did the math book get a detention? It couldn’t keep its digits to itself.

    42. How can you tell if a math teacher is happy? They’re always positively charged.

    43. What do you call a mathematician who’s always cold? An absolute zero.

    44. Why can’t a pirate do math? He always forgets the Aye on Pi-Day.

    45. What do you get when you cross a math teacher and an elephant? Trunkated numbers.

    46. Why did the math teacher need a ladder? To find the square root of the roof.

    47. What do you call a math teacher who loves puns? A funny-tioning.

    48. What did the right triangle say to the isosceles triangle? "You’re so acute!"

    49. What did the math teacher say when her student got a C+? "You’ll do better next time, don’t be so negative."

    50. Why do math teachers hate fractions? Because they’re always getting mixed up.
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