I'm posting one puzzle, riddle, math, or statistical problem a day. Try to answer each one and post your answers in the comments section. I'll post the answer the next day. Even if you have the same answer as someone else, feel free to put up your answer, too!
Tuesday, February 28, 2006
How many squares would there be?
If you were to construct a 7 x 7 checkered square (i.e., a 7 x 7 chess board), how many squares would there be in total? (Hint: it's not 49)
Monday, February 27, 2006
An oldie but a goodie
A man traveled by car to a destination 25 miles away. The journey was made between 7 and 9am, so the roads were congested and progress was slow. The journey took 75 minutes, which means that his average speed was 20 miles per hour. He took the same route on the return and traveling in the middle of the day made faster time: his return journey lasted just 25 minutes, meaning that his average speed fro the return journey was 60 miles per hour.
What was his average speed for the two journeys combined?
What was his average speed for the two journeys combined?
Saturday, February 25, 2006
What was his name, again?
What did the 'S' stand for in President Harry S. Truman's name?
This has been a busy weekend, so consider this my question for Saturday and Sunday.
Thanks!
This has been a busy weekend, so consider this my question for Saturday and Sunday.
Thanks!
Friday, February 24, 2006
Random number
Try thinking out a random 3-digit number and writing it twice on a piece of paper, forming a 6-digit number (for example the number is 123, than you will have to put down 123123 on the paper). Now divide this 6-digit number by 7. There will be no remainder, I guarantee. Now divide the result by 11. No remainder again, I guarantee. Now divide the new result by 13. What happened?
Thursday, February 23, 2006
Wednesday, February 22, 2006
Fire Trivia
Why are walls often "sweaty" after a fire? (This is a trivia question, not a riddle or a joke).
Tuesday, February 21, 2006
May I?
What does this represent?
"May I have a large container of coffee Thank You."
And no, I'm not looking for an order at your local restaurant...
"May I have a large container of coffee Thank You."
And no, I'm not looking for an order at your local restaurant...
Monday, February 20, 2006
What are the odds?
With March Madness quickly approaching, I thought this might be an appropriate question. When you fill out your bracket(s), keep in mind there are X different ways for the real outcome to occur.
What's X, assuming all outcomes are equal?
In case you aren't familiar, March Madness involves 64 (ignore the playoff for the 64th spot, please) teams. The teams are paired up in a college basketball NCAA tournament.
What's X, assuming all outcomes are equal?
In case you aren't familiar, March Madness involves 64 (ignore the playoff for the 64th spot, please) teams. The teams are paired up in a college basketball NCAA tournament.
Sunday, February 19, 2006
Saturday, February 18, 2006
Friday, February 17, 2006
How much was that?
There is an inexpensive item (less than a dollar) that can be purchased in the US. You could buy it with four US Coins. If you wanted two of these items, you'd need at least six coins. However if you bought three, you'd only need two coins. How much does the item cost?
US coins you can use: penny (1 cent), nickel (5 cents), dime (10 cents), quarter (25 cents) or half-dollar (50 cents).
US coins you can use: penny (1 cent), nickel (5 cents), dime (10 cents), quarter (25 cents) or half-dollar (50 cents).
Thursday, February 16, 2006
Wednesday, February 15, 2006
English trivia
What is the only word in the English language that if
you capitalize the word it changes the pronunciation
and meaning of the word?
you capitalize the word it changes the pronunciation
and meaning of the word?
Tuesday, February 14, 2006
Monday, February 13, 2006
Sunday, February 12, 2006
What, do you live in a barn?
When it is open it is closed and when it is closed it is open. What is it?
Saturday, February 11, 2006
Friday, February 10, 2006
Thursday, February 09, 2006
Stay dry, but is it worth it?
7 guys come out of a car. As they are going to their
destination, it starts to rain. 6 of the guys start to
run for shelter but the other doesn't change his movements.
The 6 guys get soaked while the other is completely dry.
Why did the 6 guys get wet but the other remained dry?
destination, it starts to rain. 6 of the guys start to
run for shelter but the other doesn't change his movements.
The 6 guys get soaked while the other is completely dry.
Why did the 6 guys get wet but the other remained dry?
Wednesday, February 08, 2006
Tuesday, February 07, 2006
What is it?
What is as tall as a house and round as a cup,
yet all the kings horses could not draw it all up?
yet all the kings horses could not draw it all up?
Monday, February 06, 2006
Nail in the tree
When Sandy was six years old she hammered a nail into her favorite
tree to mark her height. Ten years later she returned to see how
much higher the nail was. If the tree grew by 5 centimeters each
year, how much higher would the nail be?
tree to mark her height. Ten years later she returned to see how
much higher the nail was. If the tree grew by 5 centimeters each
year, how much higher would the nail be?
Tags: riddle
Thursday, February 02, 2006
Gone Fishin'
A boy rides the bus to the local Hardware Store. While there he buys a
fishing pole that's 5 feet long. The boy goes to get on the bus to go home
but is stopped by the bus driver. The bus driver tells him he can't board
the bus with anything over 4 feet long.
The boy goes back to the Hardware store and buys one thing then returns
and boards the bus.
The pole can not be cut, bent, broken or taken apart. What did the boy buy
to allow him to board the bus with the fishing pole?
fishing pole that's 5 feet long. The boy goes to get on the bus to go home
but is stopped by the bus driver. The bus driver tells him he can't board
the bus with anything over 4 feet long.
The boy goes back to the Hardware store and buys one thing then returns
and boards the bus.
The pole can not be cut, bent, broken or taken apart. What did the boy buy
to allow him to board the bus with the fishing pole?
Tags: brain teaser, riddle
Wednesday, February 01, 2006
Move the Match
In each of the following three, move a single match to form valid equations. The = and + are composed of two matches each.
1. \/|+|=\/
2. \/|+|=\/|
3. \/|+|=|||
1. \/|+|=\/
2. \/|+|=\/|
3. \/|+|=|||
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