Six One Seven and Nine to Make Twenty Four

How can the numbers 6, 1, 7 and 9 be arranged to make 24?

91 – 67 = 24
(9 – 6) × (1 + 7) = 3 × 8 = 24

Posted in Brain Teasers

The Longest Double Letter Word

What is the longest unscientific English word that uses every letter in the word exactly twice? For example, noon has two Ns and two Os, but it’s not nearly long enough.

Happenchance. There are two Hs, two As, and so on for all the letters in the word. The longest scientific word with the same property is probably esophagographers.

Posted in Brain Teasers

If You Break Me, I Don’t Stop Working

If you break me
I do not stop working,
If you touch me
I may be snared,
If you lose me
Nothing will matter.

Your heart.

Posted in Riddles

Numbers Night Club

A man wants to get into a night club where the bouncers test each person before they can enter. The man waits and watches.
A woman walks up to the bouncers and the bouncers say 6. The woman replies with 3 and goes in.
A small man walks up and they say 12. The man replies 6 and is admitted.
The first guy thinks he’s figured it out and walks up. They say 4 and the man replies with 2, but they don’t let him in.

What should he have said?

4. The answer is the number of letters in the number. Six has 3 letters, twelve has 6 letters and four has 4 letters.

Posted in Brain Teasers

A Room With No Windows

You are in a room with no windows, doors or any exit. The only items are a mirror and a table. How do you escape?

Hint: This is not a typical brain teaser.

Look in the mirror, then at the wall and back at the mirror to see what you saw. Use the saw to cut the table in half and join the two halves to make a whole. Put the “hole” on the wall and climb out.

I know, it’s lame. I like to have brain teasers that you can realistically guess, but this one’s so popular, I feel an obligation to include it.

Posted in Brain Teasers
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Lennie’s List of Names

Lennie was cleaning up some old papers in his office and found a list with the following names:

Washington
Jefferson
Lincoln
Hamilton
Jackson
Grant

The last name on the list was mostly worn away and he couldn’t make it out. What was the last name and why?

Franklin. It’s a list of the men on U.S. currency, $1, $2, $5, $10, $20 and $50. The $100 bill has Franklin. And an interesting tidbit is that Hamilton, along with Franklin, are the only two men in the list who did not serve as president.

Posted in Riddles

A Sign in Japan

This sign was seen in Japan. What does it mean?

A sign seen in Japan

It’s a glass sign containing instructions on a glass door.
It says PULL on one side and PUSH on the opposite side.

Posted in Brain Teasers

Made of Ten But Two We Make

Made of ten but two we make,
When assembled others quake,
Five apart and we are weak,
Five together havoc wreak.

What are we?

A fist.

Posted in Riddles

Hundreds of Letters

What seven-letter word has hundreds of letters in it?

Mailbox

Posted in Brain Teasers

What Do These Dates Have In Common?

What do these dates have in common?

15 February 1984
2 July 1983
16 December 1983

They all fall in the middle.
15 February was the middle of February (1984 being a leap year).
2 July was the middle day of the year 1983.
And 16 December was the middle of December.

Posted in Brain Teasers