# What are some good math riddles?

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## What are some good math riddles?

Math Riddles for Kids

• Which month has 28 days? …
• What number goes up and doesn’t come back down? …
• If there are 4 apples and you take away 3, how many do you have? …
• If eggs are \$0.12 a dozen, how many eggs can you get for a dollar? …
• How did the soccer fan know before the game that the score would be 0-0?

## How do you solve a riddle in math? ## What number can make everyone stand up?

Answer: The answer to this math riddle is 21. You probably just guessed to answer this math riddle, which is fine, but you can also work it out algebraically. The two-digit number ab stands for 10a + b since the first digit represents 10s and the second represents units.

## Is the answer 40 or 96?

The two answers to the puzzle are 40 and 96. The quick answer, therefore, is 40, arrived at by simply adding each equation with the sum from the previous equation.

## When can you add 2 11?

So the answer to When can you add two to eleven and get one as the correct answer? Riddle is WHEN YOU ADD TWO HOURS TO ELEVEN O’CLOCK, YOU GET ONE O’CLOCK.

## What has 6 faces and 21 eyes answer?

A die (plural: dice) 🎲 Each side of a cube is called it’s “face”. There are a total of 6 + 5 + 4 + 3 + 2 + 1 = 21 dots or “eyes” over the 6 surfaces.

## What has a ring but no fingers?

A lot of users have been wondering why is the answer to the riddle is the telephone. Taking the first line into consideration, “ring” here describes the sound a telephone makes when a call comes through.

## Who invented zero?

About 773 AD the mathematician Mohammed ibn-Musa al-Khowarizmi was the first to work on equations that were equal to zero (now known as algebra), though he called it ‘sifr’. By the ninth century the zero was part of the Arabic numeral system in a similar shape to the present day oval we now use.

## How can number 4 Be half of 5?

Answer. ➡️ In the “modern” recreation of Roman numerals, the letters IV stand for the number four. The I represents one, the V represents five, and, so it was thought, putting the I before V meant one less than five, or four. Since IV is half the letters of the word FIVE, they represent “half” of FIVE.

## What has two banks but no money?

The correct answer to What has 2 banks but no money? Riddle is “River.”

## What do riddles talk about?

A riddle is a word puzzle in which one player asks a confusing question, and the other player has to figure out its meaning. Riddles often rely on puns and double entendres – in other words, the key to solving the riddle is to realize that one of the words is being used in a surprising or unexpected way.

## What is the hardest math puzzle?

For decades, a math puzzle has stumped the smartest mathematicians in the world. x3+y3+z3=k, with k being all the numbers from one to 100, is a Diophantine equation that’s sometimes known as “summing of three cubes.”

## Who has no beginning end or middle?

Explanation: A Donut is round in shape and has no Beginning, End, or Middle.

## What is the meaning of 1 2?

One half is the irreducible fraction resulting from dividing one by two (2) or the fraction resulting from dividing any number by its double.

## What is exact math?

A first-order differential equation (of one variable) is called exact, or an exact differential, if it is the result of a simple differentiation. The equation P(x, y)y′ + Q(x, y) = 0, or in the equivalent alternate notation P(x, y)dy + Q(x, y)dx = 0, is exact if Px(x, y) = Qy(x, y).