# All Questions

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87 views

### IQ test question help [duplicate]

Can you help me with the solution of the matrix? It has been asked before here 2 but a valid and well explained answer was not provided. Source without answer: here
262 views

### 3D Chess - Stale NBA (kNight-Bishop Assault)

This is my very first chess puzzle. Any constructive feedback is more than welcome. Thanks! Introducing 3D Chess! To make things simple for the first time, we are using a $3\times3\times3$ ...
245 views

### Find the missing Number?

This is Tricky Puzzle That Will Totally Blow Your Brain. Source with answer: Note: if you answer, do it with an explanation.
168 views

### Holy Alphabet Arithmetic

$Given$: $A$+$B$+$C$=3 $B$+$C$+$D$=3 $C$+$D$+$E$=1 $D$+$E$+$F$=1 What is $E$+$F$+$G$=?
591 views

### single cryptic crossword clue… sofa besmirched with urine? Nasty [9]

single cryptic crossword clue. Sofa besmirched with urine? Nasty [9] This was a clue in a recent cryptic puzzle I saw in a newspaper. I reproduce it here as I thought it might be of interest.
158 views

### Tricky Tricky!-Can you find the secret?

Here's a selfmate problem that just might be baffle you! Thus, I name it "Tricky Tricky!" It's White to move and selfmate themselves in 8 moves. Can you find the secret? As always, no computers ...
2k views

### White's last move?

You guys have proven to be quite capable chess detectives. So here is one more mystery for you to solve: What was White's last move?
228 views

### Defuse… It's going to blast!

You are an intelligent decoder. The FBI now needs your help to defuse a bomb. You move near it and find the following notes. You have a glance at the notes. You are now ready to decode and defuse.. ...
464 views

### Red and White Squares

There are two grid boards with the dimension of 9x9 and 14x14, consist of all white squares. You are supposed to color some squares with a red color on the conditions below: In a board, if two square ...
62 views

### Chess Puzzle to calculate the minimum number of movements of pawn [closed]

Given an N×N chessboard, with two pieces, a black pawn and a white pawn randomly placed on the chessboard. What is the minimum number of steps required by the white pawn to reach the black pawn under ...
106 views

### An Efficient Riley

My prefix is for my infix. My suffix recalls a baritone or a bass. My whole is quite dreamy - what am I?
164 views

### 3D nonogram – The one-thousander

This is a three-dimensional nonogram. The first ten squares depict the layers of a $10\times10\times10$ cube. The final square gives the enumerations for the Z-axis, top to bottom. Some rules: If a ...
97 views

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

$ABB$ $CDE$ $GFB$ $DPGB$ $QPFR$ $RDFD$
411 views

### Simple Arithmetic Puzzle 8. Or is it?

This one's different to all the previous ones... \begin{align}7+53&=28\\16+6&=21\\5+19&=97\\15+8&=\,?\end{align} Can you find the value of the question mark?
214 views

### Use digits 3 3 5 to make 67 or 97

Rules: All 3 digits — $3$, $3$, and $5$ — must be used once each in any order. You can concatenate these digits to create multi-digit numbers (i.e. $33$). You can use the factorial ...
56 views

### The missing number in a sequence [duplicate]

What is the missing number represented as "?" 10,11,12,13,14,15,16,17,20,22,24, ?,100,121,10000
86 views

### What order should I learn CFOP in?

I have been solving the 3x3 using the beginners method for about 2 and a half months and I was wondering what order I should learn CFOP in. I was thinking of learning advanced f2l first and then oll ...
90 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 ...
125 views

### Approximate this big number using a binomial [closed]

Mr. Magico is a greater believer in this number: $$2^{50}=1,125,899,906,842,624‬$$ He also like to play cards, although he isn't fussy about the size of his deck, and nor does he care how many ...
2k views

### Explain how 'Sharing the burden' puzzle from Professor Layton and the Miracle Mask should be solved

Two porters have to carry six pieces of luggage of unknown weight. Each piece weighs a different amount, and they are labeled in order of weight from A to F, with A being the lightest and F the ...
291 views

### 3D nonogram – What's in the box?

This is a three-dimensional nonogram. The first six squares depict the layers of a $6\times6\times6$ cube. The final square gives the enumerations for the Z-axis, top to bottom. Some rules: The grid ...
1k views

### Chess problem: Make a crossword in 3 moves

A crossword position is a legal chess position with the following property: The board can be thought of as a crossword grid where the pieces on board work as clues. Each type of piece is a clue for ...
64 views

### Figure out this Four digit Palindrome with two distinct digits and

The sum of the digits of the palindrome is Same as the number remaining after last two digits are removed.
180 views

### Puzzling Knight has a Message for all- Especially Newcomers

Of all the more than a Trillion messages he can deliver, he has especially selected this message for all. Follow his(normal chess moves for the Knight) path to get the message. His journey starts ...
257 views

### No point shuffling, just pick your cards

Alice and Bob are playing a card game with the following rules: Alice selects two piles of 3 cards from a standard 52-card deck and places the piles in front of her, face up. Bob can see these ...
267 views

### Birthday girl's casino game

My daughter's birthday is coming up. Here's a fun party game we can play to celebrate. (Bring your wallet!) I have a pair of 6-sided dice, and a standard deck of 52 cards. You place your ...
165 views

### No Halves Hath the Heptagram

Here is the heptagram: Rules are the same as for the octagram. However, the heptagram has the very nice property that all words are unique. I.e., as you go around, you will not encounter any ...
454 views

### 3D nonogram – What's going on?

This is a three-dimensional nonogram. The first six squares depict the layers of a $6\times6\times6$ cube. The final square gives the enumerations for the Z-axis, top to bottom. Some rules: The grid ...
112 views

### Deduce Distinct Digits of the Given Fibonacci Sequence- Detail all Steps

$DEPUS$ $SRST$ $UDQD$ $CTQU$ $DTPR$ $PQR$ $SDE$ $VRR$ $CVV$ $DUU$ $QP$ $TT$
675 views

### I make billions (#5)

I make bullions balloons billions (#5) Main clues: These statues are wonderful! I'm going to invest in the sculptor. Move faster! I need to finish the 18th hole and return this golf ...
158 views

### Especially Special

Here's a special and interesting chess problem that I came across the other day. It's White to move and checkmate Black in 7 moves. Source: Милошески, Бошко Mihajloski, Zlatko, Novi temi 1975 Comm. ...
2k views

### To “Er” Is Human

I’m back with another annoying word puzzle. The following are clues to a series of “er” words. They consist of pairs of words or phrases that are both associated with a particular word that ends in “...
128 views

### A world with roman numeral alphabet

Tomorrow you will wake up and all the letters will be replaced by roman numbers. That'll be "ok" when you'll learn the replacement's order! Nevertheless, today you have the possibility to make it a ...
237 views

### Who can it be…?

Who can it be…? Can you solve the rebuses? Answer the following three questions: Where does he/she live? What is his/her name? What is his/her job? Hint 1: Hint 2: Hint 3: Hint 4:
740 views

### Tricky riddle from sister

This is a short riddle from my 12 year old sister. Can you solve it ? $3 + 3 = 8$ $2 + 2 = Fish$ $0 + 0 = Glasses$ $1 + 1 = M$ $7 + 7 = ?$
261 views

### 2019 2-letters 33-length list

Find the final 2-letters element of the following list: AQ AR AT BA BA BA BO CA CY EQ FE FO GO GY HA HO JU KA MO RO RU SA SH SK SP SU TA TA TE TR VO WE ?? Classification The 33 elements can ...
175 views

### A journey to find me

The task is to find a word which is mostly used as a symbol in Math and Physics. It is also a giant in space. Find the appropriate links from the below hints. The links (imgur- pages) will further ...
92 views

### Latin Squares puzzle

Let’s have two Latin Squares 6X6 superimposed on each other, represented here by marking one with 1s and one with 0s. The two Latin Squares contain twelve 5,2 pairs, a total of twelve pairs 6,4 and 4,...
49 views

### Puzzle on a blackboard [closed]

What is the missing number in the picture above?(question is from some puzzle game) I tried some approaches, but haven't found any meaningful rule..thanks in advance!
157 views

### Valiant Knight is back..but he is in grave danger from the Evil Queen

King has placed a bounty on Valiant Knight and enlisted his evil queen’s help. Queen knows knight’s regular stops of his journey and knows he goes through all odd prime cells. She strategically ...
271 views

### A queue of countries

This is a queue of countries: $Ireland, Guinea, Romania, Italy$ Values: $Ireland = 7$ $Guinea = 15$ $Romania = 60$ $Italy = 87$ Try to answer following questions: 1) $Mali$ = ? ...
77 views

### Stacking countries

This is a stack of countries: $Russia$ $Gabon$ $Germany$ $Indonesia$ Values of the countries: $Russia = 8$ $Gabon = 12$ $Germany = 8$ $Indonesia = 6$ Question: Try to find ...
450 views

### Five 5-cent coins touching each other

Is it possible to position five 5-cent coins so that each coin touches the other four coins?
71 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!.....
73 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, \$...
128 views

### My sports program

This is my daily sports program: First exercise: 1) Stand up 2) Got on your knees 3) Keep both arms on your body 4) Pause 5) Lean your body slightly to the left Second exercise: ...
214 views

### I make billions (#4)

I make billions (#4) For years did a sharp little verse, Grow fast in our ears like a curse, A tune on TV, Did subconsciously, Cause all to spend much from their purse, Who / what am ...
566 views

### How can this fractal shape perfectly cover a certain platonic solid?

The following fractal shape has a surprising property: This two-dimensional shape can be folded onto the surface of a regular polyhedron (one of the five platonic solids) in a way that perfectly ...