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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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 ...
584 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 ...
503 views

The Security to the Party [Part 13]

After pretty sick 12 parties, obviously 13th party occured during "Halloween". Halloween themed party is being held at a local mansion. The host is very rich and his success is because of one thing ~...
1k views

Guess The Object - What Am I Riddle (Part 5)

Since part 4 is dragging it's feet, What am I? Puny mortals, I control your very lives! When I'm angry, you cease motion, but yield to my envy, Without me you descend into chaos, I am ...
447 views

I have to attend to a party tomorrow, but I forgot what it was

Today, my phone notified me of something that seemed important. tomorrow -> party with friends I completely forgot what it was for. I proceeded to ask my friends about a party of some kind that ...
452 views

Can you find me

if you divide my first digit by my last digit then you can find me for ever If you multiply me by any number equal to or less than my length (but greater than zero) and I will only cycle. If you ...
612 views

A Second Benjamin Button

This was inspired by A curious case of Benjamin Button but has a different solution. In 1980 AD (or 1980 CE, if you prefer), Jack has an age of 20. In 1985 however, he is only 6 years old. How did ...
759 views

A village of pick pockets!

There is a small village of 100 people. An unknown number of these villagers are pick pockets. Each day, you're allowed to take as many villagers as you wish out of the village. When a pick pocket has ...
1k views

The Tricky Tunnels!

The king had a mutant rat problem in his kingdom, so he ordered 3 young men to go down under the depth of the ground to find the cause. The 3 young men jumped down the hole, and followed the tunnel. ...
441 views

An unexpected appearance

Sandra walked to dinner alone one night. She had a lovely meal at a restaurant. No one else talked to her and she sat on her own table. At the end of the meal, she asked the waitress for the bill and ...
692 views

A Murder Most Foul: Alicia Adams

Forgive me if this matches an existing murder mystery. I tried to search before writing this one up Outside the office building, sirens wailed and flashing lights illuminated the snow covered ground. ...
1k views

Can you find my friends' birthday

A friend of mine has an interesting birthday. If you shorten the date month and year and use UK date format, it reads the year in full, his birthday falls on a Friday. When he is as old as the year ...
393 views

A Secret Message In Plain(ish) Sight

I think my math teacher is a spy. On the first day of class, they wrote most of a secret message on the board - teacher said there were some letters missing. They said that anyone who could solve it ...
879 views

About Knights and Knaves and their consistency

On an Island of Knights and Knaves (where Knights always tell the truth and Knaves always lie), a Knight will never contradict himself unless some true fact changes. I was wondering: can a Knave ...
847 views

Similar to knight/knave puzzle: Insane asylum

Premise: These are like the knight-knave puzzles; only now we are visiting insane asylums, where there are only patients and doctors. Moreover, each of them are either insane or sane. Sane inhabitants ...
465 views

A really harsh short puzzle

I may be burned at the stake for this one so "sorry" in advance! When does pot and top make it without a why? (You may need a particular object to figure this one out...) Hint Hint #2:
120 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 ...
97 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 ...
143 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,...
356 views

Which candidate is most washed up?

Donovan Clump and Hermione Timmon are political candidates in the electoral race for "Most Thankless Job in Modern History". Both candidates set out into the wilderness at the same time. Rains are ...
1k views

Obi-Wan vs Grievous

19 BBY, the Galactic Republic spots General Grievous in Utapau, the Separatists' Council Base; the Jedi Obi-Wan Kenobi is sent there to deal with him. After a long search, Obi-Wan comes face to face ...
115 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'...
260 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 ...
220 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 ...
197 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. ...
171 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 ...
513 views

Puzzle: Covert spy investigation

You are working for the CIA as a spy. One day you get a secret offer from the US president to spy on the CIA for him and to go and investigate the truth about a CIA covert operation which happened 10 ...
114 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 riddle instead of just guessing or trying to play Where's wally with ...
3k views

The mad king and the 100 men who each have to guess the colour of their own hat [duplicate]

The following is the puzzle that I am trying to figure out. I know the "expected solution of 99". But honestly, I think this puzzle is flawed. How exactly can each wise man know the number of hats ...
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 ...
483 views

What happened to the missing £10? [duplicate]

I have come across a puzzle, which makes no sense. Does anyone know the answer to the below? You and two friends go on holiday. When checking out, the total bill comes to £300. You pay the bill ...
643 views

How Many Coins Were There

There were three men in a boat. They received an amount of coins in a chest from 200 - 300 as a reward for surviving the storm without damaging anything. One night, the first man thought that he would ...
253 views

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 ...
110 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 ...
385 views

Oxford versus Cambridge - a geographical puzzle [closed]

What is a geographical similarity between Cambridge University and Oxford University related to their 'titles'?
162 views

Let the Good Times Roll [closed]

Let the Good Times Roll You've decided to drive cross-country to New Orleans for Jazz Fest (and some sweet, sweet Creole cookin'). On Day 1: You make good time, travelling halfway there. On Day 2: ...