Calculating Values
Math Riddles
Funny Riddles
100

Scott has $28.75. He purchased three cookies that cost $1.50 each, five newspapers that each cost $0.50, five flowers for $1.25 each, and used the remainder of the cash on a pair of sunglasses. How much were the sunglasses?

$15.50

100

Write down the next number in the pattern: 2, 3, 5, 8, 13…

21

100

What has a face and two hands but no arms or legs?

A clock

200

I am four times as old as my daughter. In 20 years' time, I shall be twice as old as her. How old are we now?

I am 40 and my daughter is 10. 

200

 I am a 3-digit number. My second digit is 4 times bigger than the 3rd digit. My 1st digit is 3 less than my 2nd digit. What number am I?

141

200

I look at you, you look at me, I raise my right, you raise your left. What is this object?

A mirror

300

How can you write eight eights so that they add up to one thousand?

888+88+8+8+8 = 1,000

300

Johnny is painting door numbers on all the doors of a new apartment building. He painted 100 numbers on 100 apartments, which means he painted from number 1 to 100. How many times will he have to paint the number 7?

20 times (7, 17, 27, 37, 47, 57, 67, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 87, 97).

300

I can fill up a room, but take no space. What am I?

Light

400

When my dad was 31, I was just 8 years old. Now his age is twice as old as my age. What is my present age?

When you calculate the difference between the ages, you can see that it is 23 years. So you must be 23 years old now.

400

A duck was given $9, a spider was given $36, and a bee was given $27. Based on this information, how much money would be given to a cat?

$18 ($4.50 per leg).

400

What building has thousands of stories?

A library

500

Tom weighs half as much as Peter and Jerry weigh three times the weight of Tom. Their total weight is 720 pounds. Can you figure out the individual weights of each man?

 Tom weighs 120, Peter weighs 240, and Jerry weighs 360.

500

A monkey is trying to climb a coconut tree. He takes 3 steps forward and slips back 2 steps downward. Each forward step is 30 cm and each backward step is 40 cm. How many steps are required to climb a 100 cm tree?

50 steps.

500

What 8-letter word can have consecutive letters taken out and still remain a word until only one letter is left?

Starting (starting - staring - string - sting - sing - sin - in).

M
e
n
u