Measured But Not Seen

What can be measured but not seen?

Time. Or my toes when I’ve had one too many donuts…

Posted in Riddles

Money Is Right Above My Reach

Money is right above my reach, I’m barely staying out of The Emergency Room (It is right below me), Room #3 is to my left, Room #5 is to my right with a 5% interest rate.

What am I?

The number 4 key on a QWERTY keyboard. $ is money, ER (an abbreviation for Emergency Room) are the two letters immediately below the number 4 key, the #/3 key is to the left and the 5/% key is to the right.

Posted in Brain Teasers
Tagged with

Another 1

What phrase does this represent?

ANOTHER 1
ANOTHER 1
ANOTHER 1
ANOTHER 1
ANOTHER 1

One after another.

Posted in Riddles
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Bank Wait Times

Suppose a small bank has one teller and customer transactions take 10 minutes on average. With 5.8 customers arriving per hour, what is the expected wait time? What would it be if you added a second teller?

With one teller, customers will wait nearly five hours on average. But adding a second teller makes the wait go down to 3 minutes.

Thanks to John D. Cook for this one.

Posted in Brain Teasers

Fred’s Packing Job

Fred was almost done packing for the day, with five packages left. Unfortunately, Fred dropped the labels and had no idea which label went to which package. What is the probability that Fred managed to correctly label exactly four of the five packages?

Zero. If Fred had correctly labeled four packages, the fifth label would belong to the fifth package and all packages would be correctly labeled. Therefore it is impossible to mislabel exactly four packages.

Posted in Brain Teasers

How Far Does a Dog Walk?

How far can a blind dog walk into a forest?

Halfway. After he gets halfway, he’s walking out of the forest.

Posted in Riddles

I Always Send You In The Right Direction

I always send you in the right direction,
I’m arrayed in black and white,
Ignore me and lose my protection,
No more than two words are in sight.

What am I?

one-way

A one way street sign. It tells you the correct way to go, is black and white (in the United States), going the wrong way can get you a citation and the sign only has two words on it.

Posted in Riddles

Spit Like Bacon, Made With an Egg

I spit like bacon, am made with an egg,
I have plenty of backbone but lack good legs,
I peel like an onion but still remain whole,
I’m long like a flagpole, yet fit in a hole

What am I?

A snake.

Posted in Riddles

Four Letters and a Fruit or Vegetable

I have four letters in my name,
I am a fruit or a vegetable,
I look like a giant green onion,
I end with the letter k.

What am I?

The leek. It has four letters, has been considered both a fruit and a vegetable, looks like a green onion and ends with the letter k.

Posted in Riddles

Three Digits in a Row

On a regular 12-hour digital clock how many times would the same three digits in a row be displayed (e.g. 1:11, 11:12, 12:22) in one day?

34 times. These 17 instances will be visible twice in a 24 hour period.

1:11
2:22
3:33
4:44
5:55
10:00
11:10
11:11
11:12
11:13
11:14
11:15
11:16
11:17
11:18
11:19
12:22

Posted in Brain Teasers