Math Riddles with Answers

What has 3 feet but no toes?

Take 9 from 6, 10 from 9, 50 from 40 and leave 6.

A merchant can place 8 large boxes or 10 small boxes into a carton for shipping. In one shipment, he sent a total of 96 boxes. If...

Dean Sam and Castiel are three brothers. Interestingly their current age is prime. What's more interesting that difference betwee...

If 3 cats can kill 3 rats in 3 minutes, how long will it take 100 cats to kill 100 rats?

An interesting formula for generating a good many (but not all) primes is n2 + n + 41. If we plug in consecutive integers 1, 2, 3,...

Cathy has six pairs of black gloves and six pairs of brown gloves in her drawer. In complete darkness, how many gloves must she t...

If Mr. Flynn is 90 centimeters plus half his height, how tall is he?

In a pond there are some flowers with some bees hovering over the flowers. How many flowers and bees are there if both the followi...

Two is company and 3 is a crowd. What is 4 and 5?

You want to hire a temporary employee for one month. You offer him reasonable wages, but the employee suggests an alternative. For...

There is a party of 100 high-powered politicians. All of them are either honest or liars. You walk in knowing two things: - At le...

What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?

Can you find the last number in the number sequence given below? 10 : 10 : 20 : 45 : 110 : 300 : ?

What is the largest possible number you can write using only 2 numbers - just 2 numbers, no other mathematical symbols?

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?

You start with 1000 then add 40 add another 1000 then add 30 add another 1000 then add 20 add one more 1000 then add 10 what is yo...

Of all the numbers whose literal representations in capital letters consists only of straight line segments (for example, FIVE), o...

The ages of a father and son add up to 66. The father's age is the son's age reversed. How old could they be? (3 possible solution...

Five hundred begins it, five hundred ends it, Five in the middle is seen; First of all figures, the first of all letters, Take up...

How many 9's are there between 1 and 100?

If two hours ago, it was as long after one o'clock in the afternoon as it was before one o'clock in the morning, what time would i...

1203=1 4566=2 8898=7 4566=2 5464=1 7774=0 4500=

In a lake, there is a patch of lily pads. Every day, the patch doubles in size. If it takes 48 days for the patch to cover the ent...