Questions tagged [no-computers]

A puzzle designed to be solved without using calculators, online decoders or computer programming. You're still allowed to use a computer to post the solution; Stack Exchange doesn't support smoke signals yet.

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1answer
97 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, ...
2
votes
2answers
154 views

Find the “X “in the Box

Interlocked Rings shown in the picture share a common sum of 28. The numbers to be filled vary from 1 to 12 and do not repeat. Already four numbers..8, 9, 10, 11 are placed. Fill the X s with rest ...
13
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2answers
784 views

Hit the Bulls Eye with T in the Center

There are 3 Rings with “T” in the center. In each ring, letters are distinctly different - 16 in the outer, 8 in the middle, 4 in the inner rings. Hit the Bulls Eye by making sixteen different four ...
9
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3answers
4k views

Too early in the morning to have SODA?

Each letter shown represent distinct digit...can vary from zero to nine. $COCA$, $COLA$, $SODA$ are three concatenated numbers. Figure these out from the following relation: $COCA + COLA = SODA$
3
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1answer
169 views

Normal Knight sees the Big Picture during his Countrywide Travels [duplicate]

Normal Knight is savvy, energy saving as he travels through Regular Country... Ride along and Document Details of his Journey As this Knight (only chess move allowed) journeys through , he takes ...
9
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1answer
213 views

One to Eleven Sum to Twenty Five

From the picture shown below, deduce the missing numbers (one to eleven)... none of them repeating. Four Numbers surrounding the Five diamonds A, B, C, D, E, as well as the five numbers in the outer ...
17
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2answers
720 views

The Amazing Sliding Crossword

Solve the crossword then slide the blocks to create another configuration with eight new words. Across 1. Lure 5. Before long 6. Frosted 7. Permit Down 1. Scold 2. Formerly 3. Frost, for ...
4
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1answer
163 views

Prime Knight travels through Prime Country

Prime Knight travels through Prime Country... Ride along and Document Details of his Journey As this Prime Knight (only chess move allowed) journeys through Prime land, he makes a pit stop at every ...
3
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1answer
115 views

A Lollipop with Roots

$Given$: $S$, $T$, $U$, $V$. are distinct digits which can vary from zero to nine, with $V>U$. $ST$, $STT$ are concatenated Numbers. Deduce S, T, U, V from the following relationship. $$ST=\...
4
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1answer
89 views

An Arithmetic loving Ant crawls to one Hundred

This ant can do arithmetic but can crawl only horizontally or vertically, never diagonally. It starts from one of the cells shown in the picture below. It’s path covers thirteen different numbers ...
-1
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1answer
137 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: $Given$: $A$, $C$, $L$, $N$, $O$, $S$, $U$, $...
2
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2answers
82 views

All the Signs point to the Second Prime…Figure out the Missing Digits

$Given$ The six Interrelated Equations A, B, C, D, E, F All equal to 3. Allowed Digits.. 1 to 9. All the missing 9 are distinct...9?s...9 Different Digits Fillin all the digits that satisfy all ...
6
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1answer
124 views

All Raised to the Power of U

$Given$: C, I, L, U, V are all distinct digits and can vary from 0 to 9. $LIV$, $UVC$ are concatenated Numbers. $U^U$ + $V^U$ + $C^U$ = $UVC$ $L^U$ + $I^U$ + $V^U$ = $LIV$ Solve for all the ...
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2answers
106 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
127 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 ...
4
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1answer
171 views

Fill.in the two missing terms in this Simple Sequence

What are the two missing numbers in the sequence shown below: $$\def\S{\phantom{XX}} \large\begin{array}{|c|c|c|c|c|c|}\hline \S&\S&\S&\S&\S&\S\\[-10px] 4 & 5 & 6 & 7 &...
3
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2answers
660 views

Pan Digital Lucky Seven wants you to figure out all the digits

$Given$: A, B, C, D, P, Q, R, S, T are distinct digits varying from 1 to 9. AB, CD, PQ, RST are all concatenated Numbers. From the given expression , figure out all the digits to make lucky seven. ...
7
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1answer
200 views

Stars of the Celestial Bagua

Check this out: Okay, it might be more impressive if I show you what is moving along the arrows: At every vertex in a long word. Flowing in to every vertex are two short words ("inputs"). ...
11
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4answers
4k views

Use 1 9 6 2 in this order to make 75

I'm looking for a solution to make number $75$ with numbers $1$ $9$ $6$ $2$ in that order and the same rules as in Use 2 0 1 and 8 to make 67. Here a copy of those rules: You must use all 4 digits. ...
5
votes
2answers
164 views

Please figure out this Pan digital Prince

Given: P, R, I, N, C, E, T, O, M are all distinct digits varying from 1 to 9. PCRON, PRINCETOM are two concatenated numbers. PCRON is the highest possible number you can have fulfilling the ...
0
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1answer
132 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 ...
0
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1answer
80 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 ...
3
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1answer
426 views

Who are the Missing Members of this Noble Family?

Could you please find the Missing Nobles? $118$, $?$, $54$, $?$, $18$, $10$, $?$
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4answers
4k views

You have (3^2 + 2^3 + 2^2) Guesses Left. Figure out the Last one

Getting bored of all the sequences (including mine)? Here is a little different one for you. What is the last one in the following: C, H, O, P, S, ? Tell me why?
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1answer
124 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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3answers
228 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 ...
4
votes
2answers
565 views

Find the Factorial From the Given Prime Relationship

$Given$: $P$, $Q$, $R$ are three distinct Prime Numbers $P!$ = $Q$ x $R^Q$ x $P$ Find P, Q, R.
2
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1answer
211 views

Deduce the Component Digits from these three Sets of Symmetric Power Relations

Use calculator to the minimum. Under Logical Deduction, these Daunting Relations will quickly melt away to reveal the constituent digits. All three sets show beautiful symmetric Relations with first ...
1
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1answer
102 views

Devil goes Pan Digital..Sometimes Lucky..Sometimes not..Figure him out

$Given$: D, E, V, I, L, G, N, O, T are distinct digits (1 to 9). $D+E$ brings good luck $I+L$ is unlucky $N+O-T$ is unlucky too. $DDDD$ = $(D+E)^V$ + $(I+L)^G$ + $(N+O)^T$ Fully Figure out ...
3
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5answers
159 views

3 as a Sum of 3 Pan Digital Expressions [closed]

$Given$: $3$ = { A } + { B } + { C } Where A, B, C represent 3 unique Pan Digital Expressions. Each contains all the digits 1 to 9 occurs only once. Expressions contain only plus, division ...
2
votes
1answer
84 views

Express 2222 as a sum of 3 powers in 2 Different Pan Digital Expressions

Solve for the digits in this Unique set of Palindrome- Pan Digital Expressions: $2222$ = $(A/B)^C$ + $(D/E)^F$ + $(G/H)^I$ $2222$ = $(A/B)^I$ + $(D/E)^F$ + $(G/H)^C$ Where, A,B,C,D,E,F,G,H,I ...
1
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2answers
67 views

Rep Digit Palindrome expressed as a Unique set of Pan Digital Relations

Allowed Operations: Addition, Subtraction, Multiplication, Division, Exponentiation. Right and Left Bracket use permitted. Express $2222$ In $2$ Different ways using all the digits 1 to 9 only ...
2
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3answers
143 views

Express the Squares of first 20 Numbers with only numbers found in their Sum of Digits

Allowed Operations ...Addition, Subtraction, Multiplication, Division, Exponentiation, Simple Factorial. Left and Right Brackets allowed. Expression should involve minimum number of total characters: ...
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votes
1answer
135 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:
14
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1answer
290 views

E's-y T's: Word square fill in

This is a follow-up to E's-y Word-Square Fill-in, but you don't need to know anything about that puzzle to solve this one. For each word square below, the Es and Ts have been filled in for you. ...
-4
votes
2answers
190 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 ...
5
votes
2answers
186 views

Standard Sudoku Specialized with just 2 Primes

A standard 9x9 Sudoku uses the digits 1 to 9. You are only allowed two distinct primes to represent 1 to 9. Find out the minimum number of characters (digits + signs) needed to construct a Sudoku ...
3
votes
1answer
242 views

Happy New Year?

Extend this infinite series by five more terms: 17, 3, 5, 7, 11, 17, 2, 3, 5, 11, 13, 17, 2, 5, 7, 11, 13, 2
13
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3answers
1k views

Crossword gone overboard

This puzzle is part 24 of Gladys' journey across the globe. Each part can be solved independently. Nevertheless, if you are new to the series, feel free to start at the beginning: Introducing Gladys. ...
13
votes
1answer
406 views

Infinite Sequence based on Simple Rule

Using one simple rule, an Infinite Sequence has been developed. First 30 terms are given. Can you continue the sequence for at least next Ten Terms? Series continues from top left to bottom right. $...
0
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1answer
78 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. $...
0
votes
1answer
122 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 ...
3
votes
2answers
161 views

Devil in Different Disguises but in Prime Shape…Can you Figure out his Diverse Expressions?

$Given$ $Devil$ goes by $666$ Express him as 1). Sum of all Primes in 3 Different ways using all the digits 0 to 9. Use only + sign. 2). Sum of all Squares of Primes. Use only + and ^ signs. 3)...
12
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4answers
870 views

Find the three digit Prime number P from the given unusual relationships

$Given:$ P is a 3 digit prime number Q,R,S,T are distinct digits( 0 to 9 ) QRS is a concatenated number $Relationships:$ $P$ = $QRS + T$ = Reverse of $( QRS * T)$ Find P using just ...
5
votes
3answers
278 views

A Multitude Of Mates In 5-An Original Chess Puzzle

Here’s a toughie for you-and no computers allowed! I have created this unique chess puzzle which white mates black in many different ways, all in 5 moves, no matter what black does. Options do exist ...
-1
votes
2answers
121 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 ...
6
votes
1answer
369 views

The Most Powerful Number

A power-full number is defined as a number with $n$ amount of non-zero digits $D_x$. The number takes the form $D_n$&$...$&$D_2$&$D_1$. The digits in a power-full number satisfies the rule ...
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votes
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 ...
1
vote
1answer
84 views

Lady Luck Powers Up Every Member to Sum Upto Non-Prime Number. Who am I?

$Given:$ UV, WX, UVCUVWX, are concatenated Numbers. U, V, C, W, X are distinct digits ( zero to nine ). $Relationship:$ $UVCUVWX$ = $U^7 + V^7 + C^7 + U^7 + V^7 + W^7 + X^7$ $Clues:$ 1) UV ...
8
votes
1answer
153 views

These Two Cubes are The Only Ones That Are All Pure Prime..name them

Given: CU and BBUE are concatenated Cubes with all prime digits B, C, U, E. Which are these two Unique Cubes?

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