Brain Teaser 4/30/2013

Mary's husband's father-in-law is Mary's husband's brother's
mother-in-law, and Mary's sister-in-law is Mary's brother's stepmother. How did this happen?
Solution

Brain Teaser 4/26/2013

GOING TO THE MOVIES....

1. If you go to the movies and you're paying, is it cheaper to take one friend to the movies twice, or two friends to the movies at the same time?

2. Four couples are going to the movies. Each row holds eight seats. Betty and Jim don't want to sit next to Alice and Tom, and Alice and Tom don't want to sit next to Gertrude and Bill. On the other hand, Sally and Bob don't want to sit next to Betty and Jim. How can the couples arrange themselves so that they all sit where they would like?
Solution

Brain Teaser 4/25/2013

A Little Math Fun...

1. You can replace the letters below with numbers, so that the addition will be correct numerically.
MOM + MOM + NO = BOOK

2. In a stable there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable?
Solution

Brain Teaser 4/24/2013

1. The logic professor posted a notice on his class door: "Class is canceled today on account of spring. We will meet again at 1:00 P.M. three days after two days before the day before tomorrow." What day does the class meet?

2. Between noon and midnight, but not counting these times, how often will the minute hand and hour hand of a clock overlap?
Solution

Brain Teaser 4/23/2013

Unscramble the below 8 words.
O M M E
M I D I O
A L A R I D
S T A M Y G N
D I T Y
T A C E D
R U M E N A
L O S E O R A
Solution

Brain Teaser 4/22/2013

There's a three digit number which:
If you add seven to it it divides exactly by seven;
If you add eight to it it divides exactly by eight;
If you add nine to it it divides exactly by nine.
What is the number?
Solution

Brain Teaser 4/20/2013

DO YOU KNOW???

1. Is an airplane's black box actually black?
2. What does Ouija in Ouija board mean?
3. Who insures the FDIC?
Solution

Brain Teaser 4/19/2013

One of the most famous puzzles in the math world is "How Old Is Ann?" Here's another variation. Ann is now exactly two-fifths of her older sister's age, and two years from now she will be one-half of her older sister's age. Conversely, two years ago, Ann was only one-fourth the age of her older sister's age at that time. How old is Ann now?
Solution

Brain Teaser 4/18/2013

You are working out some estimates for your boss. You can come up with a very good package for your nice little wid­gets, but the packaging may be too expensive. The cost of the widget and the packaging is $1.10, and the widget is $1.00 more than the package. How much will you have to tell your boss that the package for each widget will cost?
Solution

Brain Teaser 4/17/2013

1. Each of the following groups of letters can be anagrammed into at least two words. Unscramble the letters.
EFIRSSU---EEMPRSU---EENPRST

2. One word among the following is the odd man out. Which one, and why?
CORSET--COSTER--SECTOR--ESCORT--COURTS
Solution

Brain Teaser 4/16/2013

What is the five-digit number, no zeroes, in which the second digit is three times the first, the third is one more than the second, the fourth is four times the first, and the last is one-half more than the second? 
Solution

Brain Teaser 4/15/2013

Grandpa was feeling generous, so he gave a total of $100 to his five grandchildren. Starting with the youngest, each got $2.00 more than the next younger one. In other words, the youngest got one sum, the next got $2.00 more, and so on. How much did the youngest grandchild get? 
Solution

Brain Teaser 4/13/2013

When Maria went to get a passport, she had to give her real date of birth, but under all other circumstances she refused. When somebody asked how old she was, she said she was twenty-one, mentally omitting all Sundays. Sundays she didn't work, so naturally she didn't get any older. How old was Maria really?
Solution

Brain Teaser 4/12/2013

1. Four people can sit at a table in twenty-four different arrangements. How many arrangements are possible for seating eight people?

2. If you had a piece of paper that was 0.001 inch thick, how tall a pile would it make if it was doubled fifty times?
Solution

Brain Teaser 4/11/2013

A man was telling me on a particular occasion, "The day before yesterday I was 35 years old and next year I will turn 38." How can this be?
Solution

Brain Teaser 4/10/2013

LETTERS:

1. How many S's are there in the name of the longest river in the world?

2. What are the next two letters in this series:
A E F H I K L M ??

3. What common chemical compound is represented by the following letters: HIJKLMNO?
Solution

Brain Teaser 4/09/2013

My head and tail both equal are,
My middle slender as a bee.
Whether I stand on head or heel
Is quite the same to you or me.
But if my head should be cut off,
The matter's true, though passing strange
Directly I to nothing change.
What am I?
Solution

Brain Teaser 4/08/2013

1. A friend of mine’s grandmother is younger than his father. How can this be possible?

2. What's the least number of chairs you would you need around a table to sit four fathers, two grandfathers, and four sons?

3. If Dick's father is Tom's son, what relation is Dick to Tom?
Solution

Brain Teaser 4/06/2013

There’s a certain 10-digit number where the first digit is equal to the number of zeros in the entire number, the second number is the number of 1’s in the entire number, and so on, to where the 10th digit is the number of 9’s in the entire number. What is the number?
Solution

Brain Teaser 4/05/2013

Though in theory I am always behind you, I am also around to remind you. But in case it’s your way to give me too much say, I can hamper or, even worse, blind you. What am I?
Solution

Brain Teaser 4/03/2013

Suzie just could not tell the truth while her friend Samantha (the nice one) just could not tell a lie. The lady on the left wagged her finger at her friend and announced "She said she is Suzie!"
Who is the lady on the left?
Solution

Brain Teaser 4/02/2013

Three Riddles

1. What always goes to bed with his shoes on?

2. What has teeth, And can't bite?

3. What is full of holes and holds water?
Solution

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Which word is the odd one out?

seventy, brawl, clover, proper, carrot, swing, change, travel, sacred, stone
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