A boy leaves home in the morning to go to school. At the moment he leaves the house he looks at the clock in the mirror. The clock has no number indication and for this reason the boy makes a mistake in interpreting the time (mirror-image). Just assuming the clock must be out of order, the boy cycles to school, where he arrives after twenty minutes. At that moment the clock at school shows a time that is two and a half hours later than the time that the boy saw on the clock at home.
What time was it when the boy arrived at school?
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!
Friday, August 31, 2007
Thursday, August 30, 2007
Unexpected Vacations
Sometimes, vacations can be unexpected. Take Joan for instance. She recently traveled to the four farthest points in the U.S. (north, south, east and westernmost). And she did it without crossing a land border between states.
Where did she go?
BTW, I was absent yesterday by accident. I meant to post a puzzle for you, but didn't quite make it. Sorry about that.
Where did she go?
BTW, I was absent yesterday by accident. I meant to post a puzzle for you, but didn't quite make it. Sorry about that.
Tuesday, August 28, 2007
I am the Greatest!
A friend of mine was bragging about how good he was at shooting. He had recently joined a shooting club, where the club average for missing the target was 1%. My friend was bragging that despite taking 70 shots at the target, he hadn't missed yet. I tried telling him that wasn't so impressive, but he didn't want to hear it.
Which of us was right? Is he really that great?
Which of us was right? Is he really that great?
Monday, August 27, 2007
Insurance Rates
An insurance company has three types of customers; high risk, medium risk and low risk. Twenty percent are high risk and 30% are medium risk. The probability that a customer has had at least one accident in the current year is .25 for high risk, .16 for medium risk and .10 for low risk.
What's the likelihood that a customer chosen at random has had at least one accident in the the current year?
What's the likelihood that a customer chosen at random has had at least one accident in the the current year?
Friday, August 24, 2007
Can You See Me Now?
In which decade were contact lenses first devised?
Thursday, August 23, 2007
A Little Bit Earlier Today
More rebus today!
1)
comp144etence
2)
notic
3)
amUous
BTW, Since I posted yesterday's question so late, I'm leaving it up for you to go see and answer before I post the answers.
1)
comp144etence
2)
notic
3)
amUous
BTW, Since I posted yesterday's question so late, I'm leaving it up for you to go see and answer before I post the answers.
Wednesday, August 22, 2007
A Picture is Worth a Thousand Words
What phrases do the following represent?
1)
right = right
2)
ie .
3)
TTTT RRRRRRRRR
4)
standing
friend miss friend
Despite trying to publish this question this morning, I wasn't able to because blogger was having issues. Sorry about that to everyone looking for their morning wake up brain buzz.
1)
2)
3)
4)
friend miss friend
Despite trying to publish this question this morning, I wasn't able to because blogger was having issues. Sorry about that to everyone looking for their morning wake up brain buzz.
Tuesday, August 21, 2007
Fancy a Drink?
A man walks into a bar and asks the barman for a glass of water. They had never met before. The barman pulled a gun from under the counter and pointed it at the man. The man said "Thank You" and walked out. Why should that be so?
Another free thinking puzzle. The answers from yesterday were so good, I can't wait to see what you think of for today.
Another free thinking puzzle. The answers from yesterday were so good, I can't wait to see what you think of for today.
Monday, August 20, 2007
How High Do You Want Me to Jump?
A man jumped 150 feet entirely under his own power and landed safely. How did he do it?
Note, there may be more than one right answer to this question. The idea here is to get you to think a little differently, not to solve a logic or math problem.
Note, there may be more than one right answer to this question. The idea here is to get you to think a little differently, not to solve a logic or math problem.
Friday, August 17, 2007
Origin of the Species
Charles Darwin was best known for his work, "Origin of the Species." What was the name of the last book he ever wrote, published in 1881?
Thursday, August 16, 2007
For the Married Couples Out There
Which anniversary are you celebrating when it's your Ruby anniversary.
Wednesday, August 15, 2007
White and Black
In a box you have 13 white marbles and 15 black marbles. You also have 28 black marbles outside the box. Remove two marbles, randomly, from the box. If they are of different colors, put the white one back in the box. If they are the same color, take them out and put a black marble back in the box. Continue this until only one marble remains in the box. What color is the last marble?
Tuesday, August 14, 2007
After Yesterday, I Think We Need a Break
When does Chicago begin with C and end with E?
Monday, August 13, 2007
And I Will Raise You Up
Given that x^(x^(x^(x^(x^(x^(x^(x^(x...)))...) = 2, solve for x.
Friday, August 10, 2007
Quote of the Day
We are little airy Creatures,
All of diff'rent Voice and Features,
One of us in Glass is set,
One of us you'll find in Jet,
T'other you may see in Tin,
And the fourth a Box within,
If the fifth you shou'd pursue,
It can never fly from you.
Bonus if you can tell me who said this.
All of diff'rent Voice and Features,
One of us in Glass is set,
One of us you'll find in Jet,
T'other you may see in Tin,
And the fourth a Box within,
If the fifth you shou'd pursue,
It can never fly from you.
Bonus if you can tell me who said this.
Thursday, August 09, 2007
Recycling Logic Puzzle
Connor, Ethan, Kaylee, and Alyssa each recycled a different number of cans (30, 26, 23, and 16) as well as a different number of junk mail letters (123, 127, 116, and 121).
Figure out how many cans and junk mail letters each person recycled.
Figure out how many cans and junk mail letters each person recycled.
- Kaylee recycled the most number of cans.
- Ethan recyled a total of one hundred forty-nine cans and junk mail letters.
- Alyssa recycled the least number of junk mail letters.
- Connor and Ethan recyled a total of two hundred ninety-two cans and junk mail letters.
- Kaylee recycled less than one hundred twenty-three junk mail letters.
- If the number of cans Ethan recycled was doubled he would have recycled fifty-two cans.
- Alyssa recycled ninety-three more junk mail letters than the number of cans she recycled.
Wednesday, August 08, 2007
Sorry, did you say something?
What country is the city of Nouakchott the capitol of?
Tuesday, August 07, 2007
Monday, August 06, 2007
Associates
What word can be associated with the following three words to form a compound word. Example, if I set out the three words blue, cake and cottage, the answer would be cheese, since you can have blue cheese, cheesecake and cottage cheese.
big
soil
table
big
soil
table
Friday, August 03, 2007
My Thunder
My thunder comes before the lightning;
My lightning comes before the clouds;
My rain dries all the land it touches.
What am I?
My lightning comes before the clouds;
My rain dries all the land it touches.
What am I?
Thursday, August 02, 2007
A Common Item
What goes around the world but stays in a corner?
Wednesday, August 01, 2007
100 coins
A man has 100 coins (there are no quarters or nickels) that add up to $5.00. How many coins did he have of each denomination?
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