Horse Fence

Farmer Finnegan needs to build a fence to keep his horses on his property. He only has a little over 1.5 miles of fence materials, but there’s also a mile-long straight river running through his property. What shape should he use for the fenced in area to give his horses the most space possible?

Our dear friend Finnegan should build a half-circle fence with the river as the diameter, giving the horses about 0.4 square miles to frolic and play in.

Area of semi-circle = πr2 / 2 = π × .5 miles2 / 2 = 0.3927

Posted in Brain Teasers

Stocking the Shelves

Alfred and Bill are clerks at the local grocery store. Alfred can stock a shelf in 20 minutes, but Bill is new and takes 30 minutes. How long would it take for them to stock a shelf together?

Working together they can stock a shelf at a rate of 1/20 + 1/30 (or 5/60) per minute. They’ll finish in 12 minutes

Posted in Brain Teasers

I Am What Remains

I am what remains of what
was once a living whole,
dug in deep, protruding, though,
and unobtainable.

A stump.

By Sef Daystrom

Posted in Riddles
Tagged with

When Is The Equation Correct?

When is the following equation correct?

14 + 1 = 3

When dealing with 24-hour time, 1400 hours plus 1 hour is 1500 hours, also known as 3 o’clock.

Posted in Brain Teasers

I Am Here, I Am There

I am here, I am there
I am burned into the mind of none
I walk on fire and live on ice
My words are meaningless for I talk not
I hate everyone yet fear no one
I have lived for centuries
Yet I have never existed
What am I?

Nothingness.

Posted in Riddles

Three Brothers Share A Family Sport

Three brothers share a family sport:
A non-stop marathon
The oldest one is fat and short
And trudges slowly on
The middle brother’s tall and slim
And keeps a steady pace
The youngest runs just like the wind,
A-speeding through the race
“He’s young in years, we let him run,”
The other brothers say
“‘Cause though he’s surely number one,
He’s second, in a way.”

The hands on a clock (hour, minute, second).

Posted in Riddles

Snail Up The Wall

A snail creeps 10 feet up a wall during the daytime, then falls asleep. It wakes up the next morning and discovers it slipped down 6 feet. If this happens each day, how many days will it take to reach the top of a 20 foot wall?

Four days.

Day 1: up to 10, down to 4
Day 2: up to 14, down to 8
Day 3: up to 18, down to 12
Day 4: up to 22 (20 really) and done

Posted in Brain Teasers

Four Against the Masses

We are four against the masses. We are trying to find the one who is the whole package. We sigh, we laugh, we frown while we hope that the next one will be the one. Who are we?

Four orphaned siblings. It seems like there may be a better answer than this. If you have one, please add a comment.

Posted in Riddles

Number Abbreviations

What do these represent?

24 = HiaD
26 = LotA
7 = DotW
9 = LoaC
12 = SotZ
88 = PK

24 hours in a day
26 letters of the alphabet
7 days of the week
9 lives of a cat
12 signs of the Zodiac
88 piano keys

Posted in Brain Teasers

Growing Tall But Never Fat

This on this.
That on that.
Growing tall,
but never fat.

What am I?

A stack.

By Sef Daystrom

Posted in Riddles
Tagged with