Two men were playing tennis. They played five sets and each man won three sets.

How can this be possible?

## Friday, June 29, 2007

## Thursday, June 28, 2007

### Hark, did you hear something?

How many members of each animal did Moses take on the ark?

PS, I added a poll to the sidebar. I've been wondering what type of questions/puzzles you like best. So let me know using the poll.

PS, I added a poll to the sidebar. I've been wondering what type of questions/puzzles you like best. So let me know using the poll.

## Wednesday, June 27, 2007

## Tuesday, June 26, 2007

### Happy Fourth of July!

Do they have a fourth of July in England?

And, yes, I know it's a little early for the fourth of July...

And, yes, I know it's a little early for the fourth of July...

## Monday, June 25, 2007

### Crystal Challenge

If you coated a tennis ball with glue, how many other tennis balls can you attach directly to this sticky surface?

## Friday, June 22, 2007

## Thursday, June 21, 2007

### Where Did the Rebus Go?

1)Ignore the _, please. I needed the spacer.

F F

I

R R

E _ E

2) BA NK

3) YRAROPMET

4) IFLAND IFIFC

F F

I

R R

E _ E

2) BA NK

3) YRAROPMET

4) IFLAND IFIFC

## Wednesday, June 20, 2007

## Tuesday, June 19, 2007

### A Closet Full of Shoes

A closet contains 10 pairs of shoes (20 shoes altogether). If 6 shoes are chosen at random, what is the probability that there will be no matching pair in the sample?

## Monday, June 18, 2007

### Some more sports

It's two to one, bottom of the ninth with two outs. The hometown hero stepping to the plate. The crowd tenses as the pitch is delivered.

But that's not the riddle.

No man on either side has reached second base. How can this be?

But that's not the riddle.

No man on either side has reached second base. How can this be?

## Friday, June 15, 2007

### For all you fans out there

Break it and it is better, immediately set and harder to break again.

What is it?

What is it?

## Wednesday, June 13, 2007

### Who invented the Equal Sign?

A bit of math trivia for you today. The equals sign = was invented in 1557 by Welsh mathematician Robert Recorde. In his book, The Whetstone of Witte, he wrote, "To avoid the tedious repetition of these words: is equal to; I will set a pair of parallel lines thus, =, because no two things can be more equal.

Here's your question: Perfect numbers are special because they are equal to the sum of their factors. The number 6, for instance, has factors 1, 2, and 3 which when summed equals 6. The next perfect number is 28. Do you know what the third perfect number is?

Hint: It's less than 500.

Here's your question: Perfect numbers are special because they are equal to the sum of their factors. The number 6, for instance, has factors 1, 2, and 3 which when summed equals 6. The next perfect number is 28. Do you know what the third perfect number is?

Hint: It's less than 500.

## Tuesday, June 12, 2007

## Monday, June 11, 2007

### Pipe Dreams

I'm sure you all remember your physics and math courses, right?

Two identical tanks full of water are being drained at the same time. One of the tanks has one -two centimeter circular drain outlet and the other has two -one centimeter circular drain outlets. Will one of the tanks empty faster than the other?

Two identical tanks full of water are being drained at the same time. One of the tanks has one -two centimeter circular drain outlet and the other has two -one centimeter circular drain outlets. Will one of the tanks empty faster than the other?

## Friday, June 08, 2007

### Two Numbers

My first is a number, my second another,

And each, I assure you, will rhyme with the other.

My first you will find is one-fifth of my second,

And truly my whole a long period reckoned.

How many am I?

And each, I assure you, will rhyme with the other.

My first you will find is one-fifth of my second,

And truly my whole a long period reckoned.

How many am I?

## Thursday, June 07, 2007

### Four Wet Men

Four men were in a boat on the lake. The boat turns over, and all four men sink to the bottom of the lake, yet not a single man got wet! Why?

## Wednesday, June 06, 2007

### Crack the Glass

If boiling water is poured into a thick drinking glass as well as a very thin wine glass, of the two, which is more likely to crack? Why?

## Tuesday, June 05, 2007

### Word Trivia

While I expect that any one of you could answer this question, I still found it interesting enough to post. What is very unusual about the following words?

BOUGH

COUGH

DOUGH

ROUGH

THROUGH

BOUGH

COUGH

DOUGH

ROUGH

THROUGH

## Monday, June 04, 2007

### We Haven't Seen Any Math Questions in a While

To warm-up: Which 2-digit number is 1 more than a square and 1 less than a cube?

And a little bit harder: Can you find a three digit number which is 2 less than a cube and 2 more than a square?

Hint: the three digit number I can find is made of consecutive digits, like 567.

And a little bit harder: Can you find a three digit number which is 2 less than a cube and 2 more than a square?

Hint: the three digit number I can find is made of consecutive digits, like 567.

## Friday, June 01, 2007

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