The worlds first riddle!

Are you implying that my answer is incorrect?

I'm quite sure of its correctness.

LOTTERY 1
If the numbers range from 100-999, then the probability is 1/900.

LOTTERY 2
6/900 = 1/150

MARIA
4 pairs of slacks
12 blouses
24 scarves

RAP
1) .64
2) .04
3) .32

"Are you implying that my answer is incorrect?"

Absolutely not. My point is, I do not know the specimen answer, which I will never see, unless I submit a correct answer.

"I'm quite sure of its correctness"


If you agree I will send yours and see what they say.



On a local TV quiz show, Mr. and Mrs. Halpem are given two red blocks and two blue blocks that they must distribute into two boxes any way they wish. Mrs. Halpem will then be blindfolded and asked to pick one block at random from one of the boxes. If she picks a red block, the Halpems will win $1,000. How should the Halpems distribute the blocks to give Mrs. Halpem the maximum probability of drawing a red block



A set of 10 coins may contain any combination of pennies, nickels, dimes, quarters, or half-dollars. In how many different ways can the set of 10 coins have a total value of 59 cents



A bag contains 500 beads, each of the same size, but in 5 different colors. Suppose there are 100 beads of each color and I am blindfolded. What is the fewest number of beads I must pick to be absolutely sure there are 5 beads of the same color among the beads I have picked blindfolded

I am not sure about this answer.



Peter has one of each of the following coins in his pocket: a penny, a nickel, a dime, a quarter, and a half-dollar. Four of these coins are taken out of the pocket and the sum of their values is calculated. How many different sums are possible

I don't care - I'm sure my solution is not unique. Who are "they?"

[size=7]BLOCKS
one red in one box
one red and two blues in the other box

10 COINS
3

BEADS
21

PETER'S COINS
C(5,4) = 5[/size]

"Who are "they?"

A group of academics who delight in trying to out do each other in producing the ?'ultimate' riddle.
When they find one they think I will not be able to answer, I get a message via an old account. This time your answer will surprise them.

Point out that the speeds on the return trips don't have to match the outbound speeds. That might impress them.

"Point out that the speeds on the return trips don't have to match the outbound speeds."

Will do.

Mark sans Rap.

BLOCKS
one red in one box
one red and two blues in the other box

10 COINS
3

BEADS
21

PETER'S COINS
C(5,4) = 5



Six people participated in a checker tournament. Each participant played exactly three games with each of the other participants. How many games were played in all


Abracadabra has four different coins with values 1. 2. 4. 8. Suppose you had just one of each of the four different coins - how many different amounts can be made using one or more of the four different coins


I have four 3-cent stamps and three 5-cent stamps. Using one or more of these stamps, how many different amounts of postage can I make


Five disks, numbered 1, 2, 4, 8, and 16, are placed in a bag. Three disks are withdrawn from the bag, the sum of their numbers is recorded, and the three disks are then returned to the bag. Suppose this process is repeated indefinitely.

What is the largest number of different sums that can be recorded

[size=7]CHECKERS
C(6,2)*3 = 45

COINS
2^4 - 1 = 15

STAMPS
5*4 - 1 = 19

DISKS
C(5,3) = 10[/size]

Mark:

You are the man!

CHECKERS
C(6,2)*3 = 45

COINS
2^4 - 1 = 15

STAMPS
5*4 - 1 = 19

DISKS
C(5,3) = 10


There are exactly six different three-digit numbers that can be formed using each of the digits 4, 5, and 6 exactly once in each number. What is the average of these six three-digit numbers


Whim's (what ever happened to that guy?) average grade on 5 Math tests was 88. If his lowest grade were dropped, his average on the other 4 tests would be 90. What was Whim's lowest grade in the original set of 5 grades


Using the letters A and B, the following two-letter code words can be formed: AA, AB, BB, BA. Using the letters A, B, and C, how many different three-letter code words can be formed


A baseball league has nine teams. During the season, each of the nine teams plays exactly three games with each of the other teams. What is the total number of games played

[size=7]456
555 (each digit is the average of 4, 5, and 6)

WHIM
5*88 - 4*90 = 80

AB
3^3 = 27

BASEBALL
C(9,2)*3 = 108[/size]

WWWHHHAAATTT!!! I aint even gonna look till the morrow.

Buddy, can you spare a dime?


A purse contains 4 pennies, 2 nickels, I dime, and I quarter. Different values can be obtained by using one or more coins in the purse. How many different values can be obtained


A boy has the following seven coins in his pocket: 2 pennies, 2 nickels, 2 dimes, and I quarter. He takes out two coins, records the sum of their values, and then puts them back with the other coins.

He continues to take out two coins, record the sum of their values, and put them back. How many different sums can he record at most


The number of two-dollar bills I need to pay for a purchase is 9 more than the number of five-dollar bills I need to pay for the same purchase. What is the cost of the purchase

[size=7]PURSE
49

POCKET
9

PURCHASE
$30[/size]

Mark:

456
555 (each digit is the average of 4, 5, and 6)

WHIM
5*88 - 4*90 = 80

AB
3^3 = 27

BASEBALL
C(9,2)*3 = 108

It is becoming impossible to fool this guy.

Mark:

We have more…

PURSE
49

POCKET
9

PURCHASE
$30

Ok, you struck lucky that time. No way is that gonna happen this time.


A group of 21 people went to the county fair with 9 people on a stagecoach and 3 people in each buggy. On the return trip, 4 people rode in each buggy. How many people returned on the stagecoach



Mrs. Callahan and three of her friends have formed an investment club. Each of them picked one favorite stock and invested $3,000 in it. At the end-of-year party and meeting of the club, it turned out that three of the four members had made a profit and only one had lost money. From the clues, determine each person's full name, how much each person lost or gained, and the name of the stock each invested in


Hannah did not invest in General Electric. Susan, whose last name is neither Robinson nor Drucker, made $100 less than Donna. Two people made more money than the person who invested in Kodak. The person who invested in Pfizer was the only one to lose money. Donna made $500, which was the most profit made by anyone. Ms. Robinson did not invest in AT&T but the person who did made the most money. Mrs. Smith lost $200 and Bobby made $200



If a kindergarten teacher places her children 4 on each bench, there will be 3 children who will not have a place. However, if 5 children are placed on each bench, there will be 2 empty places. What is the smallest number of children the class could have

Been away a few days, been looking for a casket--mine. Allways thought you'd better be prepared and I figgure I can use it for storing potatos until it's needed.

Out and back
[size=7]21=9+3n so n=4 there are 4 wagons
Return trip 21=4*4+x and x=5 or the return trip has five in the stagecoach[/size]

Investiment Club
[size=7]Susan Callihan made $400 in General Electric.
Hannah Smith lost
$200 on Pfitzer. Bobby Robinson made $200 on Kodak, and Donna Drucker made $500 in AT&T.[/size]

Kindergarden
[size=7]4n+3=5n-2
n=5 or there are 5 benches
os there are 23 kindergardners.[/size]

Rap

Been away a few days, been looking for a casket--mine. Allways thought you'd better be prepared and I figgure I can use it for storing potatos until it's needed.

Out and back
[size=7]21=9+3n so n=4 there are 4 wagons
Return trip 21=4*4+x and x=5 or the return trip has five in the stagecoach[/size]

Investiment Club
[size=7]Susan Callihan made $400 in General Electric.
Hannah Smith lost
$200 on Pfitzer. Bobby Robinson made $200 on Kodak, and Donna Drucker made $500 in AT&T.[/size]

Kindergarden
[size=7]4n+3=5n-2
n=5 or there are 5 benches
os there are 23 kindergardners.[/size]

Rap

[size=7]FAIR
5

INVESTORS
Bobby Robinson $200 Kodak
Hannah Smith -$200 Pfizer
Susan Callahan $400 GE
Donna Drucker $500 AT&T

BENCHES
23 kids, 5 benches[/size]

Rap wrote, "Been away a few days, been looking for a casket?-mine"

You have gotta be kidding me. Are you saying , you don't not got your own casket-mine. What, are you living in the stone age?


He also wrote:

Out and back
21=9+3n so n=4 there are 4 wagons
Return trip 21=4*4+x and x=5 or the return trip has five in the stagecoach

Investiment Club
Susan Callihan made $400 in General Electric.
Hannah Smith lost $200 on Pfitzer.
Bobby Robinson made $200 on Kodak,
and Donna Drucker made $500 in AT&T.

Kindergarden
4n+3=5n-2
n=5 or there are 5 benches
os there are 23 kindergardners.

The other Rap posted the same answers.

Mark:

FAIR
5

INVESTORS
Bobby Robinson $200 Kodak
Hannah Smith -$200 Pfizer
Susan Callahan $400 GE
Donna Drucker $500 AT&T

BENCHES
23 kids, 5 benches


Mental math riddles.


A recycling plant was packaging aluminum cans in containers. They packed five containers and weighed them in pairs. The weights were 110, 112, 113, 114, 115, 116, 117, 118, 120, and 121 pounds.

What were the weights of the individual containers


The members of an Olympiad team contributed a total of $1.69 for refreshments for their weekly practice. Each member contributed the same amount and paid for his or her share in five coins.

How many nickels were contributed by all of the members


A twelve-hour clock loses I minute every hour. Suppose it shows the correct time now. What is the least number of hours from now when it will again show the correct time


A and B are two different numbers selected from the first forty counting numbers, I through 40 inclusive. What is the largest value that (AxB) / (A-B) can have

No offense to the original poster and all those who've responded, but a brief scroll through this topic has boiled my pea brain into a puddle of rum, cigarette butts and coffee grounds.

Big Al wrote, "…a brief scroll through this topic has boiled my pea brain into a puddle of rum, cigarette butts and coffee grounds."


Sure looks like the ingredients for a hoedown. Set some rebel musik on the old gramophone, and let the party commence.