Square Root Equations

Arrange the digits 1 through 9 into an equation so that the first number is the square root of the second number. (Two possible variations)

5672 = 321,489

OR

8542 = 729,316

Posted in Brain Teasers

In Oven But Not Baked

What must be in the oven yet can not be baked?
Grows in the heat yet shuns the light of day?
What sinks in water but rises with air?
Looks like sand, but is fine as hair?

Yeast.

Posted in Riddles

The Correct Name

Donald and Regan are married with four children, named Michael, Farley, Solomon and Larry. They just had a baby girl and are picking the name. It’s down to Olivia, Tiffany and Jasmine. Donald’s brother, a piano teacher, tells them only one of the names would be correct. Which name is it?

Tiffany. The rest of the family’s names start with solfège syllables: Do, Re, Mi, Fa, Sol, La. The last syllable is Ti, for Tiffany.

Posted in Brain Teasers

Take Away All My Letters

Take away my first letter and I remain the same. Take away my last letter and I remain unchanged. Remove all my letters and I’m still me.

What am I?

A mail carrier. Letters in this sense are envelopes rather than the letters of the alphabet.

Posted in Riddles

I Have Hundreds of Legs

I have hundreds of legs but I can only lean,
You make me feel dirty so you can feel clean.

What am I?

A broom.

Posted in Riddles
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Debbie’s Dragster

Debbie starts driving her dragster from rest and constantly accelerates to 60 mph in 10 seconds. How far does she travel in those 10 seconds?

1/12 mile

Ten seconds is 1/6 of a minute and 1 minute is 1/60 of an hour, so 10 seconds is 1/360 of an hour.

If you graph her trip with the speed on the y-axis and the time on the x-axis, you get a triangle with height of 60 mph and width of 1/360 of an hour. To calculate the area of the triangle, you multiply 1/2 × 1/360 × 60 = 1/12.

Posted in Brain Teasers

Its Own Past Tense

What common verb becomes its own past tense by rearranging its letters?

Eat (ate).

Posted in Riddles

Sometimes I Get Stronger From The Sun

I can help you have some fun,
Sometimes I get stronger from the sun,
If you never give me a break,
You will find I never wake,
I am optimistic on one side,
I can be short, fat, tall or wide,
Rectangle and cylinder are two of my shapes,
And I can even help you make video tapes,
Sometimes you must wait for me to get ready,
Just hold on for a few hours and be steady,
I can help you get around the mall,
Or help you make a telephone call.

What am I?

A battery. Games and other entertainment devices run on batteries. Batteries can be charged using solar power, which is from the sun. If you use a battery-powered device long enough, the battery will die. Batteries have a plus side and can be all shapes and sizes. They can power scooters and Segways commonly used in malls and your cell phone requires a battery to function.

Posted in Riddles

What Does a Cow Have Four Of?

What does a cow have four of, a dog has eight of and you only have two of that can be used standing up or sitting down?

Nipples or teats. Cows have four of them, dogs usually have eight and a human (assuming that’s who’s reading this) has two. Cows milk standing up, dogs often lie down and women usually sit when breastfeeding.

Posted in Riddles

What Surrounds The World

What surrounds the world, yet dwells within a thimble?

Space.

Posted in Riddles