All Questions

3
votes
3answers
89 views

Find this Unique UVC Palindrome ( ignoring signs and decimal) from Given Fractional Relationship

Given: U, V, C are three distinct digits ( 0 to 9 ). UVVVV and CVVVV.U are concatenated numbers. Dot “.” Stands for decimal. Relation: $UVVVV/C= CVVVV.U$ Find U, V , C
4
votes
1answer
56 views

Simple Maths Riddle 6

A sixth riddle! There's a function just (reserved) for me though you need three of me to complete it. Don't simplify (me) when the top's much larger; I'll ...
3
votes
1answer
40 views

Number Sequence Series-Question 5

This a series of questions that are created by myself. I will give a hint in 24 hours and my answer in 3 days given that nobody could answer my question. Here is question 5: 342,765,?,242325 (It ...
5
votes
3answers
216 views

Three knights or knaves, three different hair colors

In a group of three people (A, B and C), everyone has a different hair color (blond, black or brown, not necessarily in this order) and everyone may be either a knight (always telling the truth) or a ...
6
votes
1answer
132 views

Statue Park: Five

This is a Statue Park puzzle (originally constructed for the 2019 24-Hour Puzzle Championship, as part of a Tarot card themed set -- no prizes for guessing which rank this puzzle was). Rules of ...
0
votes
1answer
70 views

Fill the grid- 4.0

Grid again !!! Can you find what comes in place of '?' ? HINT 1 HINT 2 HINT 3 In text: 5234 2112 06?7 0964 Also Try: Fill The grid - 3.0 Fill the grid - 2....
2
votes
1answer
90 views

Four Doors, One Escape

You are trapped in a room with four adjacent doors upon a wall. On each door is one of the first letters of the alphabet, in order, from left to right. You know that one of the doors leads to freedom, ...
0
votes
0answers
60 views

Words sequence please help [on hold]

My friend gave those word sequences,you basically need to find the word that best fit the x line:trigon::circle:x Cone:ellipse::circle:x Primus:current::ultimo:x Cube:tetrapod::tetrahedron:x ...
0
votes
0answers
26 views

How to approach finding a cipher algorithm when you have the code and the decoded text

I have a text that have been encoded into a grid of black and white pixels. I have both the grid and the decoded text, but I don't know how the text have been encoded. What's the best approach to ...
3
votes
3answers
47 views

Number Sequence Series-Question 4

I want to share a series of questions that are created by myself. I will give a hint in 24 hours and my answer in 3 days if nobody could answer my question. Previous ones are here: Number Sequence ...
3
votes
1answer
94 views

Minimum number puzzle!

What is the minimum number of letters required to satisfy all the following clues? "especially bad" "earth's counterpart" "flows one-way, strictly" "release as outward flow" "being this is ...
0
votes
2answers
49 views

Uvc with Lots of Magic… Enjoy the Show!

Puzzling Weekend! UVc is back again with Lots of Magic... Enjoy the Show! Given: LOTS is being multiplied by F to yield MAGIC. Digit 0 to 9 are all represented by ten different letters in this ...
6
votes
1answer
250 views

Simple Arithmetic Puzzle 7. Or is it?

The Arithmetic Puzzles are finally back! The break I took was longer than expected... Let's start easy then. \begin{align}6\times8&=72\\10\times9&=6\\1\times1&=1\\18\times69&=\,?\...
0
votes
2answers
96 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.
1
vote
1answer
92 views

Pentagon chipher

Please help! Its a swedish scoutcipher.
5
votes
2answers
141 views

Unknown 5-pieces cube puzzle - help recognize

I have strange 5-pieces cube puzzle which I can't solve for a long time. I don't know name of the puzzle and can't google it. I'm not sure that there are all pieces. Can you help to recognize it?
3
votes
2answers
127 views

A game of cricket

This puzzle is part 14 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. ...
3
votes
2answers
105 views

Find the values of U, V, C based on the given relationship…useful for upcoming puzzles

Given: U, V, C are 3 distinct digits..values can vary from 1 to 9. CU is a concatenated number Solve for U,V, C from the following relationship: $U^V$ X $V^U $ = $CU $ This will give some basis ...
1
vote
0answers
60 views

Number Sequence Series-Question 3

I want to share a series of questions that are created by myself. I will give a hint in 24 hours and my answer in 3 days given that nobody could answer my question. Here is my number sequence: 2020,...
11
votes
5answers
166 views

Pulling Apart a Jigsaw Puzzle

Assume you have a jigsaw puzzle that is also a tessellation. This means every piece has an identical shape and can be assembled into a 2D pattern that fills the plane with no gaps. Such a jigsaw ...
0
votes
0answers
52 views

Can you Crack Cohen Family’s Cryptic Codes?

Cohen family of four ...each have their own single numeric code to generate first level access to the system. Before first level access is granted, system displays any one of the 4 single digit codes. ...
3
votes
2answers
130 views

Can you express this orderly Palindromic Devil in strict ascending Pandigital form?

Given: Devil as you know is $ 666 $ Using digits 1 to 9 in strict ascending order and only three mathematical signs ( +, -, /, x ... of these are allowed), write the Pandigital expression $ 666 = ...
11
votes
1answer
591 views

Better than Rembrandt

This puzzle is part 13 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. ...
4
votes
1answer
111 views

A word loved by poets

A word loved by poets in five equal parts The end of a dog is how two of them start The third can be found in the land of Jafar The fourth can be useful to learn where you are The ...
11
votes
1answer
500 views

Richard's Favourite TV Programme

My friend Richard is a huge TV fan so I recently asked him for some recommendations. He wouldn't tell me his favourite show but sent me a list of descriptions of some shows he likes to watch: ...
2
votes
1answer
75 views

Puzzling Palindromic Year with Pleasing Palindromic Expression.. Please find them

No computers, calculators or searches. Given: The number is a Palindromic year. $PQ$ is a concatenated number. $ U , V $ are two distinct positive integers Expressed as $ PQ ^ U + PQ ^ V + ...
1
vote
1answer
119 views

Be a Wizard..Find the missing digits of this 41 digit Humongous Palindromic Square!

Absolutely No calculators or computers. Only Simplest Method for finding the missing digits will be accepted as the right answer. Given: The square of this 21 digit number $ 229 359 782 235 085 ...
5
votes
1answer
218 views

Number Sequence Series-Question 2

I want to share a question that is created by myself. I will give a hint in 24 hours and my answer in 3 days given that nobody could answer my question. Here is my number sequence: 1441,2882,5764,?,...
2
votes
2answers
172 views

Cathy’s Composite party is powered by three Prime Pals. Can you find them?

Given: A, B, C are 3 distinct primes. Find the smallest composite number Y that satisfies the relation: $ Y = A ^ C + B ^ B + C ^ A $
7
votes
1answer
184 views

What Am I? — A Little Riddle

The river, a cycle. The symbol, a part. The node, an object. One word. Hint:
3
votes
1answer
128 views

I can break you. What am I?

I can break you, Or take you, And captivate you forever. I strike you, In moments where you’re weak. I strike you so that Forget me you will never. This arrow ...
10
votes
0answers
170 views

A Domino Rectangle

Can you arrange a standard set of $28$ dominoes into a rectangle of $7\times8$, where each of the 8 rows sum to $21$ and each of the 7 columns sum to $24$? Image from WikiPedia. The 'twistier' the ...
1
vote
1answer
78 views

Shapes in the wild

New here so apologies if this is not quite allowed. Yesterday our department had a meeting in one of our conference rooms on campus. When we arrived the room was empty, but there were three puzzles ...
8
votes
1answer
249 views

Cryptic crossword (printer's devilry edition)

All but nine of the clues are normal. The remaining nine are printer's devilry clues, whose answers are thematic. Solvers must fill the grid correctly and use the thematic material to identify an ...
6
votes
4answers
173 views

Number Sequence Series-Question 1

I want to share a question that is created by myself. I will give a hint in 24 hours and my answer in 3 days given that nobody could answer my question. Here is my number sequence: 3/2,2/3,3/4,1/3,...
10
votes
1answer
183 views

For the price of one

This puzzle is part 12 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. ...
8
votes
2answers
157 views

Cyrus' Adventure (Part 9)

After pressing the button, the walls opened. This time, instead of a damp smelly room, a futuristic lab appeared. "What the-" exclaimed Cyrus. T.E.D. scanned the whole lab quickly. Cyrus ...
18
votes
3answers
1k views

Bookshelves: the intruder

Somebody has messed up my bookshelf by shoving a book into completely the wrong place. Which is the intruder?
3
votes
0answers
158 views

Number sequences: 000, X00… and 6X000X9, 700XX08

Q1: 000,X00,?,XX0 ,X00 Q2: 6X000X9,700XX08,00000015,?,00000015,?,00000015 These two questions actually come from the puzzles made by my friend. He gave me his puzzles recently but I couldn't figure ...
1
vote
1answer
75 views

After seeing my 16xxxx16 sequence puzzle, my Younger sibling wants to get into the act and give a little puzzle of his own

In our Reptand prime family, as you know, everybody has our own signature Cycle length. My younger sibling unit has shorter cyclic period and he wanted to create little puzzle for you. He truncated ...
11
votes
3answers
578 views

Five Powers of Fives Produce Unique Pandigital Number…Solve for X..Tell me Y

Given: Y is a Pan-digital Number (no zero, 1 to 9 only) ending in 3. Pan digital number consists of all 9 digits 1 to 9..each digit occurring only once as is the case here. Last digit is given as 3 ...
3
votes
1answer
113 views

Can you solve this numerical puzzle

Puzzle goes like: 3, 2, 12 10, 4, 9 8, 6, 3 9, 6, 2 7, 4, (?) Can you answer what can be the (?) mark, with explanation
-3
votes
0answers
103 views

Do Not Believe Her Lies [on hold]

So I was struggling in this "game" for almost 2 months and I still can't get through the level 7 in it. It's actually an online riddle game and it's quite challenging for me... If anybody want to try ...
2
votes
1answer
82 views

Composite Cat Cannot divide its immediate lower neighbors factorial without leaving a remainder

Find this unique composite cat given the information in this title.
5
votes
2answers
125 views

Prime turns into Perfect Cube, if you reverse its digits and subtract…What is the number

Given: 1) I have more than one digit. 2) Reversed number is subtracted to give at least 2 digit number which should be a cube. 2) you don’t even need a calculator to figure me out. Who am I?
-1
votes
0answers
51 views

An easy English amusement for children [duplicate]

Here’s an easy one that amused me as a child. I don’t think it’s that well known, but has recently appeared on the internet so it’s trivial to answer if you look it up. It might be slightly more ...
1
vote
2answers
166 views

Solve this nice little everyday puzzle

What is the solution? Use only the hints that are really necessary to solve the puzzle: Hint 1 Hint 2 Hint 3 Hint 4 Hint 5 Hint 6 Hint 7 You may quickly solve it using this hint! Solution
13
votes
2answers
739 views

Roman Numerals Equation 2

This is a follow up for Roman Numerals equation 1 With your creativity and lateral thinking and any ways you can think of (except the restrictions below), make the following equation correct moving ...
2
votes
3answers
169 views

People love, but hate to see me

When I'm around, better stay inside People love, but hate to see me; My task is to hide As my quest is for your life to be the key What am I?
3
votes
1answer
156 views

Moderately geeky cryptics

A few assorted cryptic clues. Mostly pretty straightforward, although some "geek" skills may be required to understand some elements. Parts of one or two clues may be UK-centric. Apologies for those ...

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