Questions tagged [no-computers]

A puzzle designed to be solved without using calculators, online decoders or computer programming.

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1answer
56 views

Pan Digital Split among Two Powers

$Given$: $AB$, $DBCE$,$AGFPQR$ are three concatenated numbers with all distinct digits varying from zero to nine. $AB^C$ = $DBCE$ $AB^F$ = $AGFPQR$ Deduce all the digits through logical reasoning ...
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0answers
109 views

center of the noise [closed]

In the center of the noise, the accused tries to hide. But the demons are already around, they take control.”? SOURCE
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4answers
553 views

Two opposite onramps one city [closed]

Is it possible to have two freeway on-ramps,(one going north and one going south), and have them both go to the same city?
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2answers
581 views

Spelling Puzzle

All right students, take your seats for the "Spelling Bee." Perhaps I should say "Arranging Bee." Listed are the names of seven countries of the world. For the test, I have scrambled the letters that ...
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2answers
187 views

Simplist proof you have for the Monty Hall Problem [closed]

This sounds simple. What is the easiest solution to the Monty Hall problem you have which does not use listing out every probability and also requires you use algorithms? Also, no research or ...
0
votes
2answers
269 views

French alphametic (misspelled)

The following puzzle has a spelling mistake: DOUCE should be DOUZE. The correct version is: French alphametic (corrected) (Surprisingly the faulty version allows feasible solutions.) Every ...
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2answers
109 views

Number of Days in a Year with Consecutive Perfect Squares

Given: Number of Days in a normal Year To Do: Express it in two different ways utilizing Squares of consecutive positive numbers.
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1answer
342 views

Which letter completes this puzzle?

As shown in picture below, which letter completes the puzzle ? It bogging me for few days already ...
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1answer
70 views

TripTog's problem with his socks [closed]

Our friendly three-footed alien TripTog has two triplets of socks, which he keeps in a drawer in a room. Each triplet of socks is labeled 1, 2 or 3, because TripTog is very meticulous about which ...
0
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1answer
130 views

Don’t let this daunting equation dissuade you to deduce the desired result

Given: A, B, P are distinct digits. AA, AAA, ABB are concatenated numbers. Relations: $$P=A+A+B$$ $$(AA + ABB)^P-(ABB)^P=(AAA - A) ^P+(B+B^B*B)^P+(B^B)^P$$ Don’t be afraid to make reasonable ...
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2answers
86 views

It is not as Simple as it Looks to get the right Alignment

Of these US Coins (Quarter and Dime Combo). Initial arrangement of the coins as shown in the picture is as follows... Q D Q D Q D Q Objective is to attain the final configuration... Q Q Q Q D D D. ...
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1answer
78 views

Inspired When West Winds Waft over me during my Long Walks

When West Winds Waft over me during my long Walks, become inspired Puzzle Maker. Where is this place? I don’t have a profile yet, so it won’t help you much. For those mathematically minded, they may ...
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1answer
118 views

UVC wants to give you a Helping Hand in Solving these Unique Set of Pan digital Fractional-Decimal Relations

Use pure logic and deductive reasoning only. Document detailed steps in arriving at final solution. You can use calculator minimally. $ Given$: Utilizing These two unique set of Pan digital ...
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3answers
241 views

Unscramble the words and find the odd one out

Unscramble these words: noacb olve aukccpe Which is the odd one out? There are several possible solutions.
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1answer
102 views

coordinate encription

today I found myself in front of the following codified text: MzIgVCA2NTg3MjYgNDg1MTY0Nw0KMzIgVCA2NTc5OTkgNDg1MzExMw0KMzIgVCA2NTc0MDUgNDg1MjMxM ...
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votes
1answer
82 views

How do you make Prime “COMPUTERS”?

$Given$: $COMPUTERS$ is the smallest Pan Digital containing all the digits 1 to 9 occurring only once. $COMPUTERSV$ is a Prime only when one of the correct digit ($V$)is added at the end. Also, $...
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1answer
75 views

We are Unique Friends. Our Special Squares Share a Common Bond…Figure us out

Use logical deduction only and document your steps in detail. $Given$: A, B, C, D, E, F, M , T are distinct digits(0 to 9). ABC, EBF, DDABC, MCMABC, TBBB are all concatenated Numbers. $...
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1answer
154 views

ENCRYPTED MESSAGE

I have been given a code to break, and I did frequency analysis on it, but I cannot go any further due to the fact that I am not clear on where are the spaces between words, so in example I present ...
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1answer
163 views

Don't give me that line [duplicate]

Note: This puzzle cannot be solved on the computer. Draw it out on paper and then solve... ...
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0answers
92 views

The hardest one I believe [duplicate]

If you are really smart solve this Sudoku within a day BEST OF LUCK
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0answers
168 views

3 Gods Logic Puzzle [duplicate]

This logic puzzle can be found on the web so NO GOOGLING! You walk up to three gods. One always tells the truth, one always lies, and one randomly decides to tell the truth or to lie and does what ...
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2answers
155 views

Hexagon vs Harry Houdini…Round 1…How did Harry do? Let us Find out

$Given:$ Harry Houdini is Mental Math Magician and top Math Wizard at Hexon..one of the top cryptographic companies in the world. They have deployed Passwordless super smart secret system to ...
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votes
3answers
326 views

Fill in the Values [closed]

In the product of two two-digit numbers (' '7) × (7' '), there is same digit at both the blank spaces. What can be a possible answer to this multiplication?   $(\bf{A})\ 807\ \ \ \ (\bf{B})\ ...
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votes
2answers
120 views

Famous Number Displays Dual Cubic Relationships..Figure it out

$Given$: A, B, C, D are all distinct digits. ABCD is a concatenated number $ABCD$ = $A^3$ + $(A+C+D)^3 $ = $D^3+ (A + D)^3$ Figure out this Number and why is it Famous? Also provide ...
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3answers
47k views

Use the numbers 8 6 4 2 = 25

Use the numbers 8,6,4,2 and the operators +,-,*,/ to get 25. You can use each number once. Each operator can be used once. The least number of operators you use the better answer will be.
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votes
1answer
123 views

SOLV for Narcissistic UVC

This puzzle highlights some cyclic power Relations. Please provide detailed reasoning of derivation of digits from various power relations given below: $Given$: $A$, $C$, $L$, $N$, $O$, $S$, $U$, $...
-1
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1answer
109 views

What is the Longest Meaningful Sentence U can make Using single letters only? [closed]

Some Examples: I C U. S I M A B.
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1answer
51 views

lightest ball among 8 balls by 2 tries using a balance scales [duplicate]

I have 8 balls and one of them is lighter than others. How could I find that ball by 2 tries? Also I have a balance scales.
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2answers
99 views

Mighty Knight Makes only Minimal Moves

Mighty Knight(regular chess moves only) is trapped in corner cell H1. What are the minimum number of moves needed for the Knight to visit each X marked cells? Example: F2..1. D1...2. Etc Final ...
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votes
2answers
139 views

How do you Solve an Age-Old Problem? [closed]

Mansion has a son (Mark) and a daughter (Mindy). Mark is older than Mindy. Five years ago, Sum of Mark and Mindy’s ages was twenty two. Five years from now, Mark will be exactly twice as old as Mindy....
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1answer
85 views

Strange? Primes and Palindromes have no business being in this Place?

$1$ $1$,$2$ Good easy start $1$,$2$,$4$ As expected $1$,$2$,$4$,$8$ I know it is going to be easy $1$,$2$,$4$,$8$,$16$ why is he giving this? I got it! $1$,$2$,$4$,$8$,$16$,Prime ...oops!.....
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4answers
166 views

Go for the Gold

You are given a bag containing 1 and 2 ounce gold rounds. You need to draw one coin at a time till they Sum up to ten rounds. How many different ways you can achieve that? What is the quickest path ...
-4
votes
3answers
352 views

Bartenders' beer-table error-correction code

At a pub, a friend spotted our table number being 412; there were nowhere near 400 tables. We mused if it could include a checksum so the bartender could tell if customers gave an invalid number. I ...
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votes
2answers
203 views

How does the Kangaroo cross the Highway?

A Kangaroo wants to cross a 3 lane highway, all cars going in same direction. All lanes are 7 feet wide. In lane A a car passes every 4 seconds In lane B a car passes every 3 seconds In lane C a ...
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2answers
126 views

Be Quick and Calculating..Take Four Shots

To Target Sum of 100 Exactly . By shooting the right different numbers in four shots summing upto 100.
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1answer
130 views

Simple Rule Generates this Sequence from Well Known Number Series

First 6 terms generated on applying the simple rule are displayed here. 5, 8, 18, 102, 322, 1830, ?, ?, ? Hint 1: Hint 2: Hint 3:
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votes
1answer
94 views

Express 50 to 100 with constituent digits only…my 100th pzl on 50th day

Using the following rules only, Express the numbers from 50 to 100 using only digits in the number. Concise with minimum number of characters is preferred. No concatenation of numbers allowed. Only, ...
-5
votes
1answer
111 views

Fibonacci again..Distinct Digits..Detail all your Deductive Steps [closed]

$ABB$ $CDE$ $GFB$ $DPGB$ $QPFR$ $RDFD$
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votes
1answer
125 views

Rhyme with Time

Commonly used units of Time are: $Second$ $Minute$ $Hour$ $Day$ $Week$ $Month$ $Year$ $Decade$ $Century$ $Millenium$ Can you find at least one rhyming word in English Language for each of ...
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votes
3answers
227 views

From the given Square - Factorial Relationship, deduce the unknowns

$Given$: A, B, C, D are distinct digits and can vary from 1 to 9. DB is a concatenated number. From the following relationship, solve for A,B,C,D. Give your deductive reasoning. Please read all ...
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votes
2answers
158 views

Numberless Sudoku with Just a Letter and Symbol Combination

A Standard 9x9 Sudoku uses the digits 1 to 9. You are only allowed to use a single letter(say T) and a symbol of your choice to represent the digits 1 to 9. Rules should be well defined and the ...
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1answer
73 views

Give these Digits their own Place..Place them Right

In their own Circle. Such that the arrows point to successive numbers . Start with 1 and end with 9. There might be more arrows than necessary. Find the solution with least number of arrows ignored.
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2answers
97 views

Math to Math Nerdy Love Expressions…Fillin the Blanks [closed]

1) My Love for you is like $L= m.C^2$...because it grows xxx with speed of xxxx. 2) My Love is like a xxxx it goes on xxxxx. 3) You must be the xxxxx xxxx of xxxxx because I feel irrational ...
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1answer
81 views

Professor Clark’s Precious Chemical Connections

They are primarily eight precious ones. Fill in the X s with appropriate letters to reveal all the 8 Precious Metals. Each X represents a letter. 1,5,7..vertical. 2,3,4,6,8..horizontal
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1answer
263 views

The Puzzling Phone [closed]

The amazing "Puzzling Phone", comes in two models, one sold by "Super Puzzling Inc", and one sold by "Mega Puzzling Ltd" Phones need to have government testing before they can be sold on the market. ...
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votes
1answer
110 views

Number of days in a normal year expressed with five consecutive positive integers [closed]

Given $D$ is the total number of days in a normal year $a$, $b$ are positive integers $P$, $Q$, $R$, $S$, $T$ are consecutive integers Figure them out by combining the following six expressions ...
-10
votes
2answers
496 views

Longest $Scramble Sentence$? [closed]

Before we begin, allow me to define what I call a Scramble Sentence, A Scramble Sentence is a grammatically correct sentence, where at least 1 other permutation, of the letters in the sentence, ...
-13
votes
1answer
527 views

Social networking “party” system

A party is a group chat, the only difference being there's a "leader" (this is the person who started the chat) In these parties, there can only be 5 maximum users, this includes the leader. In ...