### Fun Facts (Hints)

Math is a part of our lives in almost every way. Check out these interesting facts about math that show why it's the "universal language":
The mathematical tool, the wheel, is believed to be first used around 3000 BC.
3000 BC is also the period in which the Ancient Egyptians started using numerals. As evidenced in their hieroglyphics.
Fahrenheit invented his thermometer in 1718. Thermometers are mathematical tools used to measure temperature, and of course are still used widely present-day.
The first evidence of counting dates back more than 52,000 years and is attributed to the Neanderthal man.
Galileo one of the most famous mathematicians, was born in 1564.

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Riddles and Answers © 2021

## Paper Threes Riddle

Jenna wrote all the numbers from 300 to 400 on a piece of paper. How many times did she write the digit 3?

Hint:

## You'll See Me Riddle

Youll see me when the sun is high and also late at night,

Im in the songs of holidays, when the snow is white,

Kings and Queens and royalty, are all found in me,

Im the largest of them all, with just one you see,

Step by step with pounding feet, Im tribes of angry men,

Im above your hands right now, for help or to go again,

Youll use me in the kitchen, or add a little more,

Ill be in the years to come, and the days of yore.

What am I?

Im in the songs of holidays, when the snow is white,

Kings and Queens and royalty, are all found in me,

Im the largest of them all, with just one you see,

Step by step with pounding feet, Im tribes of angry men,

Im above your hands right now, for help or to go again,

Youll use me in the kitchen, or add a little more,

Ill be in the years to come, and the days of yore.

What am I?

Hint:

The Number Twelve (12).

Noon and midnight are both 12 oclock and the Twelve Days of Christmas is a popular Christmas carol.

There are twelve face cards in a standard 52-card deck and twelve is the largest number with one syllable.

There are twelve steps in Alcoholics Anonymous, a troy pound is 12 ounces, there were 12 tribes of Israel and a popular movie was called, Twelve Angry Men (12 members of the jury). There are twelve function keys on your keyboard. F1 often shows a help screen and F5 reloads pages in your browser.

Many recipes measure items by the dozen, adding one more for a bakers dozen. There are twelve months in a year.

YES NO

Noon and midnight are both 12 oclock and the Twelve Days of Christmas is a popular Christmas carol.

There are twelve face cards in a standard 52-card deck and twelve is the largest number with one syllable.

There are twelve steps in Alcoholics Anonymous, a troy pound is 12 ounces, there were 12 tribes of Israel and a popular movie was called, Twelve Angry Men (12 members of the jury). There are twelve function keys on your keyboard. F1 often shows a help screen and F5 reloads pages in your browser.

Many recipes measure items by the dozen, adding one more for a bakers dozen. There are twelve months in a year.

*Did you answer this riddle correctly?*YES NO

## 150 Pens Riddle

Rihanna brought home 150 pens but while packing them, she misplaced some of them. When her brother asked how many she had misplaced, she told him:

If you count in pairs, one will remain

If you count in a group of three, two will remain

If you count in a group of four, three will remain

If you count in a group of five, four will remain

If you count in a group of six, five will remain

If you count in a group of seven, nothing will remain.

How many pens do you think has she misplaced ?

If you count in pairs, one will remain

If you count in a group of three, two will remain

If you count in a group of four, three will remain

If you count in a group of five, four will remain

If you count in a group of six, five will remain

If you count in a group of seven, nothing will remain.

How many pens do you think has she misplaced ?

Hint:

## As Long As Its Value Riddle

Hint:

## Thirteen Hearts Riddle

Hint:

## Less Than 100 Riddle

Find a number less than 100 that is increased by one-fifth of its value when its digits are reversed.

Hint:

## Making Ten Riddle

Hint:

Yes it is possible in Roman Numerals. In Roman Numerals,

9 = IX

10 = X

11 = XI

Thus by removing one from 9, you are getting 10 and by removing one from 11, you are getting 10 again.

YES NO

9 = IX

10 = X

11 = XI

Thus by removing one from 9, you are getting 10 and by removing one from 11, you are getting 10 again.

*Did you answer this riddle correctly?*YES NO

## Odd Number Becomes Even

Can you solve this classic number riddle before getting hung?

Hint: Spell the number out.

## Roman Numeral IX Riddle

Hint:

## Finding The Number Riddle

What number am I? I am a three digit number. My tens digit is five more than my ones digit. My hundreds digit is eight less than my tens digit.

Hint:

## Unique Numbers Riddle

Hint:

All numbers(0-9) appears in alphabetical order and once.

YES NO

*Did you answer this riddle correctly?*YES NO

## Common Letters Riddle

Hint:

## The Countersign Riddle

Two spies want to get in an enemy's military base. In order to get in they have to give the correct countersign to the guard at the gate after he gives them the sign. So, they wait hidden nearby the gate so that they will overhear the countersign from another soldier.

One soldier comes and the guard gives the sign: "6". The soldier answers "3". The guard lets him pass. Another soldier comes. The guard says "12" and the soldier gives the answer "6". The guard lets him pass. So, the first spy goes at the gate and the guard says "10".The spy, sure that he knew the answer as he was, says "5". Immediately, the guard shoots him dead. Then the other spy, who saw that the other spy was killed when he gave the countersign, had now understood what the right answer would be, whatever the guard's sign was. So, he walks to the gate and the guard says "8".The spy gives the correct answer and the guard lets him in. What was the answer that the spy gave?

One soldier comes and the guard gives the sign: "6". The soldier answers "3". The guard lets him pass. Another soldier comes. The guard says "12" and the soldier gives the answer "6". The guard lets him pass. So, the first spy goes at the gate and the guard says "10".The spy, sure that he knew the answer as he was, says "5". Immediately, the guard shoots him dead. Then the other spy, who saw that the other spy was killed when he gave the countersign, had now understood what the right answer would be, whatever the guard's sign was. So, he walks to the gate and the guard says "8".The spy gives the correct answer and the guard lets him in. What was the answer that the spy gave?

Hint:

5. It's the number of letters it takes to spell the word the guard says.

YES NO

*Did you answer this riddle correctly?*YES NO

## The Jacksons Wedding Day Riddle

When the Jacksons married 18 years ago, Mr. Jackson was three times as old as his wife, and today he is just twice as old as she?

How old was Mrs. Jackson on the wedding day?

How old was Mrs. Jackson on the wedding day?

Hint:

Mr. Jackson was 54 and his wife was 18. Now hes 72 and his wife 36.

YES NO

*Did you answer this riddle correctly?*YES NO

## The Magic Number Riddle

Think of a number

Multiply times 2

Add 6

Divide by 2

Subtract the first number you thought of

What is the number you came up with?

Multiply times 2

Add 6

Divide by 2

Subtract the first number you thought of

What is the number you came up with?

Hint:

The answer is 3

If you got a different number you did the math wrong

YES NO

If you got a different number you did the math wrong

*Did you answer this riddle correctly?*YES NO

## Post Your Number Riddles Below

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