Questions tagged [word-problem]

A mathematical puzzle that's stated in words, usually in terms of a story or a situation that dresses the problem up.

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5
votes
1answer
293 views

Two players alternately name dates

Two players alternately name dates. The winner is the player who names 31st December, and the starting date is 1st January. If a player names Xst of Y Month, the other player can name the first of the ...
2
votes
1answer
124 views

Which step is creaky?

The problem is as follows: Ms. Flor has a 50-step wooden staircase that allows access from the first floor to the second floor. One of the steps creaks when a person stands on it. Diego and Mike are ...
2
votes
1answer
116 views

Number of bullets for each hunter [duplicate]

The problem is as follows: Two hunters make a stop in the forest to eat their breads. One of them has 5 breads and the other has 3 breads. Suddenly, another hunter appears, who has no bread at all. ...
8
votes
1answer
276 views

Ernie and the literary criticism

When I dropped in on Ernie over the weekend he commented that he hadn’t seen me for a while. I had to confess that my evenings had been very busy recently - first at the local Community College doing ...
0
votes
2answers
186 views

Find the competition rankings of three people based on their final scores

I found this puzzle in my Logic and Reason book from 2000's. The topic is ordering information. From the looks of it seems to be an adaptation from a reprinted version of Martin Gardner's 70's book of ...
0
votes
0answers
64 views

Problem Solving [duplicate]

Long time ago in Egypt, an old man died and left a herd of 41 camels to his three sons. According to his will, the oldest son should get 1/2 of the camels, the second son 1/3, and the youngest 1/7 of ...
3
votes
3answers
122 views

finding a number using clues [closed]

The digit on hundreds place of a three-digit number is 2, the digit on tens place is 3 less than the digit on ones place. 6 times the product of the three digits is 20 less than this number. What is ...
7
votes
1answer
373 views

Ernie and the Chocolate Bomb

Last week when I visited Ernie he complained that his trousers had shrunk in the wash. I suggested an alternate possibility – he was putting on weight. So he decided to go on a diet and to support him,...
2
votes
3answers
148 views

How do I find the least number of times a shuttle can travel from one place to another?

I often see this situation in exams and I'd like to know if there is any kind of algorithm or shortcut that I can use to solve this puzzle instead of just guessing. The problem is as follows: A space ...
6
votes
2answers
684 views

Is there a way in which all the members can be seated?

Here's a puzzle where it is very difficult to find a possible seating arrangement of all the members. I have been struggling to solve it. I have devoted so much of my time trying to figure out ...
1
vote
2answers
334 views

Find the least number of objects from a jar when those have two colors

I've been going in circles with this question which belongs to certainty about something. The original source of this problem is unknown. I found it in a textbook who doesn't have an author but rather ...
-1
votes
1answer
108 views

Forming numbers from a given word [closed]

How many integers can you form using the letters of the word "interchangeability"? Note: You can ignore spaces when forming numbers.
-1
votes
1answer
94 views

Number whose letters are in alphabetical order [duplicate]

Can you find the smallest number whose letters are in alphabetical order when spelled out in English?
13
votes
1answer
806 views

Ernie and the Superconducting Boxes

I was in anticipation all last week. Ernie, who had been travelling for several months, was finally coming home. So over the weekend I dropped in on him. He was bursting with news. "Some wonderful ...
1
vote
1answer
207 views

Mensa 3rd Grade Recess Game [closed]

Mensa 3rd Graders At Recess There are dozens of variations of this puzzle type, but I put my own spin and characteristics to it. It is lunch time for the little ones at Mensa Mini's Private School. ...
6
votes
2answers
308 views

The CompuTaria Quest - A young Wizard's journey

Once Upon A Time In A Land FAR, FAR Away... Our adventure begins in the enchanted land called "CompuTaria". You are, "Binaryian" a 3rd year Wizard In Training. Today began like any other day - you ...
11
votes
1answer
434 views

The Key to the Door

I need to get into this building. Next to the only door is a keypad with a simple 10-key numeric keypad. I hear someone approaching so I hide in a nearby bush to observe. They walk up to the door, ...
11
votes
2answers
520 views

Oh boi! Dis waas never Engliz! #2

This puzzle is second in the series, the first one being this. But these are related in no way. Below are some weird combinations of letters, which are actually words translated in some different ...
9
votes
1answer
806 views

Who attempted to betray the Boston King?

The Castle of Weshire recently declared war on the Castle of Boston. The two armies soon met, the Boston King and Weshire King giving out orders from behind their lines of soldiers, surround by their ...
7
votes
1answer
484 views

Oh boi! Dis aint Engliz! #1

First some Engliz: These weird combination of letters are actually words translated in some different languages, and concatenated. Each line has one word translated in different languages. These ...
9
votes
8answers
1k views

What mysterious whole number am I?

From my second point of view I copy that amount of first. I am the dominant side of two but for many I'm the worst. I'll be tricky to find but today might be your day, after all my neighbour is 2/3 of ...
1
vote
4answers
117 views

Air Miles Challenge

This isn't my own creation, it's an exercise that my partner had to do during a work exercise and seemed interesting to share here. You've been given 86,400 Air Miles to explore the world and there'...
6
votes
2answers
178 views

A Crucial Delivery

Planet Earth has been at war with the nefarious aliens of Planet XYZ for a while. The front lines are on Planet XYZ, and you, being Earth's lead scientists, need to find a way to get vital information ...
0
votes
1answer
125 views

How many posts are needed to surround the perimeter? [closed]

Julie's garden with perimeter of 54 ft and width of 12 ft is to have posts put around it 3 feet away from the garden's edge on all sides. They are also to be three feet apart. how many posts will she ...
8
votes
2answers
255 views

Half and Double Value

A 3 year old child tried to input or copy a number (written on the paper) to a calculator but he messed up with the digit places. All the digits are there but the value of the number he inputed ...
13
votes
1answer
590 views

Ernie and the Case of the Singing Sisters

On my way to work each morning I pass a news-agency that usually has a sandwich-board displaying the latest headlines of a somewhat disreputable tabloid newspaper (not that I would ever buy such a ...
8
votes
4answers
504 views

The Knights and the Hounds

(With thanks and congratulations to Lee Leon) We rejoin our heroes several days after the events of The Knights' Gift, at the head of a pack of enormous staghounds, 1000 strong. Such a pack ...
3
votes
1answer
99 views

How can these people cross the bridge? [duplicate]

There are 4 people that must cross an old dilapidated bridge at night, All four walk at different speeds: There is a young teenager that can cross the bridge in 1 minute. There is teenager's older ...
8
votes
1answer
289 views

To Plunder Treasure Islands

Captain Etarip, wants to plunder all the treasure islands that he can. There is exactly one island for every $n\in\mathbb N$. The $n^{\text{th}}$ treasure island contains three cities, each with $n$ ...
16
votes
1answer
1k views

Given these numbers, find the secret word

My son is 12 years old and his task was to find an English word from these numbers: 13; -8; 2; 2; -6; 12; 2; 6; -1; -12 where ...
5
votes
1answer
601 views

Rolling a dice - Expectation Question [closed]

I heard / read / acquired this puzzle from somewhere: Roll a die, win $2\times$ the value of the face if it is an even number, or win $1\times$ the value of the face if it is an odd number. How ...
20
votes
4answers
967 views

Ernie and the Uneconomical Flat-breads

When I arrived at Ernie's place last weekend I had some exciting news for him. "did you know", I announced "that a new Kzijekistanian fast-food shop has just opened in town?". "I did", Ernie replied, "...
5
votes
1answer
785 views

Grandma's Simple Puzzle Box

One day, after a long morning walk, my Grandma came home with a box in her hand and told us the story of how she got it. She said that she met six women in the park who were sitting together in a ...
0
votes
2answers
254 views

Please help Solve!

Retrospectively, Professor Siwel did Quite well with his follow-up representation, Currently utilized by generation X. The first clue given was: "A clue, the only uppercase letters that you need to ...
0
votes
3answers
1k views

How does the hit-man assassinate his target using only two questions?

You are a hit-man undercover at a dinner party. You are in a conversation with three people. One of them is your target. You get to ask two questions before they get tired and leave. You know that one ...
1
vote
1answer
176 views

Find the word with numbers

You are supposed to find a 8-letter word from the weird clock below by forming one or two digit numbers in an CCS or CS order and take first or last letter of the spelling of that number you have ...
15
votes
2answers
821 views

Ernie and the Optical Gyroscopes

I almost always take up Ernie’s offers to crew on his boat, when he suggests an overnight expedition. But when he phoned last Thursday I had to remind him that it was TV night, and Acme Satellite ...
7
votes
1answer
592 views

Ernie and the Mastermind

Recently Ernie's twin niece and nephew Maria and Mario were spending a few days staying at his place. When I dropped in on a rainy Friday morning I found them a little dissatisfied with the ...
8
votes
11answers
1k views

Magic Time-travelling Baktun Wheel

I have an ancient mayan friend who emailed me the other day: From: BalajChanKawiil@google.az To: puzzleguy@google.com Subject: Hey! Hey how are you! I was wondering if you were ...
15
votes
2answers
716 views

Ernie and the Slow Glass Solution

"Have a look at this" said Ernie when he dropped in unannounced yesterday, pulling what looked like an old-fashioned photographic negative from an envelope. I held the small plastic square up to the ...
6
votes
2answers
358 views

A puzzle for my family

A few years back I made this puzzle. I finally decided to update it and post it In my family my youngest sibling is 1 and my oldest sibling is 21. And the distance between ages is always 2 years. ...
12
votes
2answers
931 views

Ernie and the unfair division of the dessert

I was pleased to get an invitation to Ernie's place for dinner last Wednesday. The triplets were staying for the week so I knew Ernie would be making an extra effort to cook a gourmet home-cooked ...
31
votes
10answers
6k views

100 Prisoners and a clock

There are 100 Prisoners who are given a chance at freedom. The prisoners are randomly picked to visit a room where there is only a nonfunctional wall clock with a ...
1
vote
2answers
222 views

Which horse wins the race?

Freddy, Charlie, Apple, and Boris are each one of four horses in the Belmont Stakes, a 1 1⁄2-mile race. After a mile the horses are in the following positions: Freddy is at least an eighth of a mile ...
17
votes
5answers
2k views

100 Prisoners' Names in Boxes - Save them all!

This puzzle is based on 100 Prisoners' Names in Boxes: Names in Boxes The names of 100 prisoners are placed in 100 wooden boxes, one name to a box, and the boxes are lined up on a table in a ...
34
votes
4answers
3k views

Magnets on a whiteboard

Alice enjoys placing magnets on a magnetized whiteboard. This day, she placed all 16 magnets in her possession on the board in a rectangular fashion. o o o o o o o o o o o o o o o o "...
41
votes
11answers
11k views

They all gave the same one word answer - What answer did they give? [closed]

Here's a slightly different, fairly easy one. Three men travel for almost a day across an unknown distance to a meeting point. One travelled by car, another by horse and the other by boat. When ...
11
votes
2answers
2k views

Reverse hangman #12

Put in an "H", and you'll find that not many actually chase it. Put in a "C", this free and you're clean. Put in a "P", looks like you got it dirty. Put in an "L", it's small, but some things go in ...
8
votes
7answers
3k views

Non-sensical talk from a drunk man

Uncle John drinks a lot. Yesterday when he was drunk he saw something and told me: A man put some threads in water and after his subsequent actions, residents of the house were captured and the ...
9
votes
1answer
371 views

Youre a big drinker right? Can you interpret for the drunk?

Be gentle! I'm trying something new... I'd like a full translation/interpretation, and bonus points if you spot the pattern. I expect it'll be easy as pie so think of it as a race. A VERY drunken, ...