Riddle: How many times can you subtract the number 5 from 25?

## Show answer

Once, because after you subtract 5 from 25 it becomes 20.

Here’s a great collection of fun math riddles (with answers) for all you mathematical whiz kids out there! Have fun solving them!

Riddle: How many times can you subtract the number 5 from 25?

Once, because after you subtract 5 from 25 it becomes 20.

Riddle: Always a part and never a whole, if only half grows I shrink. What am I?

A fraction.

Riddle: I have 2 coins that equal 30 cents and one of them is not a nickel. What coins do I have?

A quarter and a nickel. One of the coins isn’t a nickel but the other one is!

Riddle: One brick is one kilogram and half a brick heavy. What is the weight of one brick?

2 kilograms.

Riddle: In two years Susan will be twice as old as she was five years ago. How old is she?

Susan is 12.

Riddle: I am an even number. If you take away one letter from me, I become odd. What number am I?

SIX. If you take away the ‘S’, you are left with IX which is the Roman numeral for 9.

Riddle: A man buys a goat for $60. Then, he sells it for $70. Then, he buys it back at $80 but sells it again for $90. How much did he make?

The man made $20.

The first time he made $70 – $60 = $10.

The second time he made $90- $80 = $10.

Therefore, he made a total of $20.

Riddle: What digit appears the least number of times between the numbers 1 and 1000?

0 (Zero).

Riddle: There are 3 apples in a basket and you take away 2. How many apples do you have now?

Two – the two you took. The other apple is in the basket.

Riddle: How many times does the number 9 occur between 1 and 100?

20 times.

Riddle: A cell phone and phone case cost $110 in total. The cell phone costs $100 more than the phone case. How much was the cell phone?

$105.

Riddle: If you multiplied all of the numbers on the dial pad of a smartphone what would the total be?

Zero. All the numbers from 0 – 9 are there and if you multiply anything by zero, the result is zero.

Riddle: How many days are there in 4 years?

1,461 (365 x 4 and then add 1 because one of the years is a leap year).

Riddle: What 3 digit number will give you the same answer whether you subtract 5 or divide by 5?

6.25.

Riddle: I add six to eleven and get five. How is this correct?

It’s talking about time. If you add six hours to 11 o’clock, you get 5 o’clock.

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

888 + 88 + 8 + 8 + 8 = 1000.

Riddle: How can you take 2 from 5 and leave 4?

Take two letters (the first and last letters) from the word FIVE and you are left with IV, which is the Roman numeral for the number 4.

Riddle: 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.

194.

Riddle: What two whole positive numbers have a one-digit answer when multiplied and a two-digit answer when added?

The numbers 1 and 9.

Riddle: How do you make the number 7 even?

Drop the “S” from the word seven and you are left with the word even!