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

The Secret Lair

A secret lair has a code to only allow members to enter. The person wanting to enter says a random number, then is told a number in response. In order to enter they must say the correct third number. Here are sequences that allowed entrance.

1 3 5
27 11 6
9 4 4

What’s the third number of this series?

16 7 ?

Five because s-e-v-e-n has 5 letters. The first number can be anything, the second number is the number of letters in the first number, and the third number is the number of letters in the second number.

Posted in Brain Teasers

Eyes That Don’t See

Most of you have two eyes. I only have one.
Most of you have eyeballs. I do not.
Your eyes aren’t dangerous, neither are mine.
But all together, I am extremely dangerous.
You can see things with your eyes.
I can’t see anything, even though the air is clear where my eye is.

What am I?

The eye of a tornado or hurricane. Could also be the eye of a needle.

Posted in Riddles
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Remove Four And I’m The Same

I am an English word with five letters. If you remove my last four I am still pronounced the same. What am I?

Queue.

Posted in Riddles

PK II Rebus

What does this represent?

PK
II
PD
ES

Pipe down kids.

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How Much Dirt?

How much dirt is there in a hole that measures two feet by three feet by four feet?

None. A hole doesn’t have any dirt.

Posted in Brain Teasers

Which Do You Light First?

You have a single match and are in a pitch black room with a candle, an oil lamp and a gas stove. Which do you light first?

The match.

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An Ancient Invention

What ancient invention allows people to see through walls?

A window.

Posted in Riddles

Current By Dew

What do the following words have in common?

current
by
dew
faze
loan
ate

They all have homonyms:

currant (current)
buy (by)
due (dew)
phase (faze)
lone (loan)
eight (ate)

Posted in Brain Teasers

A Game of Cards

In a game of cards, GEORGE partnered with MARY, while TED had to choose a partner. He could have chosen ANN, EDNA, JOAN or ANGELA. Whom did he choose and why?

ANN. If you give each letter a number according to its position in the alphabet:
TED = 20 + 5 + 4 = 29
ANN = 1 + 14 + 14 = 29

(George and Mary each add to 57)

Posted in Brain Teasers