# All Questions

16,982 questions
34 views

### A Magical Compass

On a walk through the Aelordern forest, a young man found a small brass compass on the ground next to the overgrown forest trail he was strolling on. He opened it eagerly and admired the elaborate ...
27 views

### Walk a Crooked Path

Here is a $7\times7$ board with three squares removed. You walk a path from square to square (adjacent horizontally or vertically), without visiting any square more than once. What is the most ...
28 views

### Find the Missing Members of this Family

Who are the Missing Members? $?$, $V$, $U$, $?$, $S$, $?$, $P$, $O$, $N$, $?$, $H$, $F$, $?$, $B$
58 views

### Find the counterfeit coin

We are given ten stacks of three coins. All the three coins in one of the stacks are counterfeit. A true coin weights a whole number of grams. A false coin differs in weight from a true coin by less ...
51 views

### Use 0 1 2 3 4 to make the numbers 331, 333, 435, 452, 455, 458, 461, 469, 470

You must use all 5 digits 0, 1, 2, 3, 4 each exactly once. You can make multi-digit numbers out of the numbers, e.g. 120 or 42. The square function may NOT be used. Nor may the cube, raise to a ...
26 views

### Savage Road Signs (Part 3)

You only need to have read Part 1 to understand this question, reading Part 2 will only help understanding the epic storyline. Your daughter refuses to talk to you even though you have (once more) ...
94 views

### Can White Castle?

This is the first chess puzzle I composed in the retrograde genre. I originally posted this in a chess dedicated forum. Hope you like it! In the following position, is it possible that White could ...
53 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, ...
72 views

### Is this 3d Sudoku possible?

I was looking at images of 3d Sudoku's on Bing, because I was looking for a $9\times9\times9$ Sudoku, where each horizontal, vertical left-right and vertical top-bottom plane was also a Sudoku. Is ...
74 views

### Oops!!! Dropped it again!

I have dropped my laptop twice in the past and luckily nothing went wrong. Today while getting ready for college, I dropped it again - for the third time. This time, something is wrong. When I ...
73 views

### Is the following topology puzzle impossible to solve? [duplicate]

There was a problem I was introduced to in grade school which my teacher claimed that not even his graduate level students could solve, and it went a little like this. You have a set of boxes in a ...
49 views

### What number should replace a question mark [on hold]

Please let me know What number should replace the question mark
97 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 ...
95 views

### See me once, See me Twice #12

See me once, I'm watching your every move Thanks for your visit, I know you were there I see what you did there in my lair Look for my acronym and you'll have your proof. See me twice, ...
459 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 ...
636 views

### Very tricky nonogram - where to go next?

I've become somewhat addicted to Simon Tatham's "Pattern" (nonogram) puzzles recently. I thought I was becoming fairly adept with them, but this unusually difficult one has me stumped. I've got as far ...
141 views

### Magical Knight Moves with Effortless Ease in his Magical Kingdom

Magical Knight knows every Square of his Magical Kingdom. In many respects, he is like any other knight...Literary,Prime, Normal(makes same allowed chess moves). He is people Knight . As he traverses ...
82 views

### Which number replace question mark [duplicate]

Answer my question that which number will replace question mark.
71 views

### color coded puzzle [on hold]

Help me solve this problem. As this site appreciates a little effort from the person who posted it. Here's my thought process: 1) The matrix starts with 0 ( gr, gr, gr). It has three places which can ...
154 views

### Who is this…? Array…?

You can find me as a veg, In a series I'm a language. But now, my hair is gray, In short, I'm Array... Who am I?
150 views

### Traversing Latin America & Caribbean: A Cryptic Journey

Earlier parts in the series: Africa, US & Canada, Oceania. Each answer is a place, landmark or attraction in Latin America or the Caribbean, one per country. The answers traverse all countries by ...
267 views

### Unorthodox Prof. Roman’s Chemistry Class Quiz

Prof. Roman of Chemistry department as you all know is quite unorthodox..here is his Quiz. It is Monday Morning and it is time for Prof. Roman’s unusual quizzes to his chemistry class. What is the ...
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: $COCA + COLA = SODA$
428 views

### Combine two squares into a square with the sum of the two

The red square is placed on top of a blue square The goal is to cut the red square into 4 pieces and assemble them with the blue square to create a larger square. The area of the resulting square is ...
1k views

### Elementary, my dear …

My list for today Iodine-Sulfur+Americium-Scandium:Phosphorus Iodine-Titanium+Molybdenum+Thorium+Yttrium-Lithium:Helium Praseodymium+Oxygen+Vanadium+Erbium+Boron+Sulfur-Lithium:Aluminum ...
163 views

### A sentence with all numbers [on hold]

Crazy thought. Can you make an (grammatically correct) english sentence using english words which are all numbers? Each word in that sentence must represent a number. I am expecting a minimum 6 ...
316 views

### One! Two! Fizz! Four!

Argh, how I hate those mean kids and their newfangled game!
64 views

### Invert the numbers [duplicate]

I have an array of numbers containing 0 and 1 only and you are given a a constant C . You have to invert all the 0's to 1's by taking exactly C number of elements . What is the max number of 1's we ...
176 views

### At my beginning there's a vessel, you can slash me with a chisel

At my beginning there's a vessel, You can slash me with a chisel. I belong to the first from a total of four, There's nothing to add more ... Who/ what am I? Hint 1 Hint 2
1k views

### Setting up the trap

Start with eleven in one e four e six; add what is missing from otherhood, oke, icks; improving position, go upwards by one; mix up for organs, remove fifty-one. Add to the end an ...
67 views

### Fibonacci Cycles Back…Figure out the Fibonacci Number FBN

$Given$: $F$, $B$, $N$, $U$, $V$ are all digits that can vary from 0 to 9..but not necessarily distinct. $FBN$, $NBF$, $UV$, $VU$ are all concatenated numbers. From information given below, what is ...
143 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 ...
179 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 ...
84 views

### Who Am I? (A Dead Guy)

You seek him who died at sea, Try and find who he might be. A heart that did not wilt in flame, Writ on Roman stone is his name. Nothing of him that doth fade, But doth suffer a sea-change, Into ...
621 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 ...
137 views

### What is the missing number in set B?

A {6, 2, 2, 2, 16, 2} B {37, 37, 3, 3, 3, ?} The numbers in set A relate to one another through a numerical or abstract pattern. Set B has a similar or a somewhat contrasting pattern .The task in ...
131 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 ...
77 views

### -4 to 3 magic square [on hold]

Write the numbers -4 ,-3 ,-2,-1,0,1,2,3 in correct place value so that each of the square adds up to 0 Please solve this question, because I have tried this this question many times without success. ...
617 views

### In a Fish that is not a Fish

Righteous head of a snake that is a snake, Aback, held in a fish that is not a fish. Now, I'm beauty in disguise, Despite being, to most, nightmarish. I am looking for two answers... One on the ...
205 views

### You may find me… puzzling

I am within my rights to stay silent. I am abandoned in the middle. I am held in by spirit. I am African capital. Who or what am I?
124 views

### Common Marsupials and Rare Antelopes

Following the surge of riddles from senpais: this by jafe, and this by Rand al'Thor I hide as a puzzle in Malaysian spoon, Bounding sturdy monument and sturdy wood. Upside-down in common ...
288 views

### I wish, I yearn, for an answer to this riddle

In a creature is my natural home. Have me in your meal and you'll become me. (With me, this line would be adjacent.) Experts take more time with me. In winter wear, I might be half a mile.
195 views

### I'm yearning in grey

I have made films on wood. I have stopped by a park. Going outside late makes me happy. I'm yearning in grey. What is my name?
157 views

### Take Twelve to Total Twenty Two

Without repeating the numbers 1 to 12, Fill the grid below to total 22 in both directions. \def\X{\smash{\rlap{\Space{7pt}{0px}{0px}\llap{\Huge{\times}}}}} \Large\begin{array}{|c|c|c|c|}\hline &...
59 views

### CASCADE -> SCASCCA, then PROBLEM ->? [on hold]

In a certain code, CASCADE is written as SCASCCA. How is PROBLEM written in that code?
97 views

### Professor Annity’s invention

The following morning, I found my mentor, Professor Annity, busily cleaning up after what looked like a series of curious experiments. As I entered the lab, she fixed me with a familiar sort of ...
69 views

### What is another word for eighty if you add one letter to the beginning

What is another word using EIGHTY If you add only one letter to the beginning of eighty?
96 views

Teacher: You got a 0. Miles Morales: Is that...failed? Teacher: Listen. If you answer all questions on a multiple choice test randomly, you would get a 25%. This means the only way for you to ...