What number should replace the question mark?
7 9 4 5 43
8 7 3 3 47
10 4 4 7 12
12 5 4 2 ?
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, May 29, 2009
Thursday, May 28, 2009
Vowels Removed
A well known phrase has had all its vowels removed and has been split into groups of three letters. What is the phrase?
HRT DYG NTM RRW
Wednesday, May 27, 2009
Mark is Having a Party
Mark is in a bit of a quandary. He's having a party, but knowing his friends, he's having trouble deciding who he should invite.
If he invites John, he must invite Paul. If he invites Paul, he can't ask Mary. And of course, if he invites Mary, he can't ask Paul. He must invite John or Mary or both. It just wouldn't be a party without one or the other or both of them. But if he invites Mary, he must invite John.
Who can he invite to his party?
If he invites John, he must invite Paul. If he invites Paul, he can't ask Mary. And of course, if he invites Mary, he can't ask Paul. He must invite John or Mary or both. It just wouldn't be a party without one or the other or both of them. But if he invites Mary, he must invite John.
Who can he invite to his party?
Tuesday, May 26, 2009
Thought Follows Close Behind
Can you answer both riddles?
These two were asked by Tara. I've 'asked' the second before, but since the first is new, I decided to go with it. Thanks, Tara!
- I can run, but cannot walk. Wherever I go, thought follows close behind. What am I?
- Give me food and I will live. Give me water and I will die. What am I?
These two were asked by Tara. I've 'asked' the second before, but since the first is new, I decided to go with it. Thanks, Tara!
Monday, May 25, 2009
Lots Of Bags and Sugar
You have 24 kg of sugar. You have a lot of bags. You have a scale but no weights. How do you measure 4.5 kg of sugar?
Asked by BloggerIO.
Asked by BloggerIO.
Friday, May 22, 2009
Riddle of the Day
How can half of 12 be 7?
This was submitted by Nina Renner. Nina, if you want me to link your name to anything, please let me know.
This was submitted by Nina Renner. Nina, if you want me to link your name to anything, please let me know.
Thursday, May 21, 2009
Trapped Again
You're trapped in a room with no windows or doors. All there is is a table and a mirror. How do you escape the room?
This one is a bit of a trick question, just so you know.
It was asked by Ad Williams.
This one is a bit of a trick question, just so you know.
It was asked by Ad Williams.
Wednesday, May 20, 2009
Tuesday, May 19, 2009
Another Great Question
A man goes uphill and finds a stone weighing exactly 40 Kg. he happens to tumble it down and down it comes trumbling but reaching down it breaks up in to four (4) pieces. And to Mike's surprise he could use the four pieces to weigh 1,2,3,4, .... up to 40 Kilos. What are the weights of each of the four pieces Mike has now?
This one was submitted by Maj Mandloi.
This one was submitted by Maj Mandloi.
Monday, May 18, 2009
Someone Suggested This One
There are 7 girls in a bus.
Each girl has 7 backpacks.
In each backpack, there are 7 big cats.
For every big cat, there are 7 little cats.
Question: How many legs are there in the bus?
Each girl has 7 backpacks.
In each backpack, there are 7 big cats.
For every big cat, there are 7 little cats.
Question: How many legs are there in the bus?
Friday, May 15, 2009
MzzLily Asked a Question
A man buys 10 trees. He leaves instructions for them to be planted in 5 rows with 4 trees in each row. How is this possible?
This question comes from MzzLily.
This question comes from MzzLily.
Thursday, May 14, 2009
Since Yesterday Was so Popular
Let's go with another odd one out. Which animal does not fit with the others?
- Chamois
- Tiercel
- Impala
- Fennec
- Gerbil
- Jerboa
Wednesday, May 13, 2009
If You Get This One, I Will Eat My Hat
Which one is the odd one out?
Gaskin, Stifle, Hock, Fetlock, Gibus
BTW, It seems like I've been doing a lot of word puzzles lately. Does anyone have any good math, logic puzzles, etc... they want to share?
Gaskin, Stifle, Hock, Fetlock, Gibus
BTW, It seems like I've been doing a lot of word puzzles lately. Does anyone have any good math, logic puzzles, etc... they want to share?
Tuesday, May 12, 2009
I Get Dizzy Just Thinking About It
What day is two days before the day after the day three days after the day before Tuesday?
Monday, May 11, 2009
Figure Out the Rules And Solve the Puzzle
Find the missing word that will fit the rule of the example below.
CONE (NICK) KRIS
LISP (_ _ _ _) ETON
CONE (NICK) KRIS
LISP (_ _ _ _) ETON
Friday, May 08, 2009
Fridays Are Supposed to be Easy
What number should logically replace the question mark?
26, -39, 58 ½, -87 ¾, ?
Update: Thanks for pointing out the missing question mark! I added it in.
26, -39, 58 ½, -87 ¾, ?
Update: Thanks for pointing out the missing question mark! I added it in.
Thursday, May 07, 2009
Everything Neat and Tidy
I have hundreds of legs, But cannot stand.
I have a long neck, But no head.
I cannot see, but I keep things neat and tidy.
What am I?
I have a long neck, But no head.
I cannot see, but I keep things neat and tidy.
What am I?
Wednesday, May 06, 2009
Next in Line
What in connection with this question, is the next number below?
4, 13, 19, 21, 29, ?
Hint Below:
Read the sentence carefully before answering.
4, 13, 19, 21, 29, ?
Hint Below:
Read the sentence carefully before answering.
Tuesday, May 05, 2009
Month to Month
Can you go from September to July using the clues?
S E P T E M B E R
_ _ _ 1 2 3 4 _ _ : Clue: Hygenic
_ _ 2 3 4 _ _ _ _ : Clue: Anthropod
_ _ _ 3 4 5 _ _ : Clue Numerous
J U L Y
U L are the same as the second and third letters in the word above.
I couldn't get it to line-up properly, so I used numbers to indicate which of the preceding words letters the word has in common. For instance, in the second line 1 2 3 4 indicates the first, second, third and fourth letter in SEPTEMBER (i.e. SEPT) are the letters. In the next line, the second, third and fourth letter from the previous word (hygenic) are the same.
S E P T E M B E R
_ _ _ 1 2 3 4 _ _ : Clue: Hygenic
_ _ 2 3 4 _ _ _ _ : Clue: Anthropod
_ _ _ 3 4 5 _ _ : Clue Numerous
J U L Y
U L are the same as the second and third letters in the word above.
I couldn't get it to line-up properly, so I used numbers to indicate which of the preceding words letters the word has in common. For instance, in the second line 1 2 3 4 indicates the first, second, third and fourth letter in SEPTEMBER (i.e. SEPT) are the letters. In the next line, the second, third and fourth letter from the previous word (hygenic) are the same.
Monday, May 04, 2009
Gem of an Anagram
Which of the following is not an anagram of a gem?
riznoc
modnaid
niznai
pirehpsa
thincaj
riznoc
modnaid
niznai
pirehpsa
thincaj
Friday, May 01, 2009
Flu Like Symptoms
A doctor is called in to see a sick kid. The doctor knows that 90% of the sick kids in the neighborhood have the flu, while the other 10% have the measles. (Assume that's it for diseases right now).
95% of the kids who have the measles develop a rash. Only 8% of the kids with the flu develop a rash.
The doctor, looking at the child, notices a rash. What is the probability the kid has the measles?
95% of the kids who have the measles develop a rash. Only 8% of the kids with the flu develop a rash.
The doctor, looking at the child, notices a rash. What is the probability the kid has the measles?
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