All Questions

Source I am unable to come up with a complete solution. No outside knowledge is said to be required for the solution to this puzzle. My observations: words which are not without a prefix only have ré ...

This position has been used in hundreds of chess problems for various reasons by a plethora of problemists over many, many decades. It is known as "Vielväterstellung" in German, or "The ...

This is part 13 of the puzzle series that started at Living the traveller's dream. Each part is solvable on its own. Dear Puzzling, My long trip is finally over. This is my last destination before ...

I have found a counter intuitive puzzle. I have read the answer given at the source and understand it completely. But, what I am unable to understand is why my intuition turned out to be wrong. ...

I'm really very old, Nowadays rarely used, Replaced by animals Of a feminine variety. Give me more space, And I'm in Asturian, Or in some webpages Of an HTML variety. What am I?

You stand before a cryptic tower. On a locked door of crumbling stone is a strange cipher. The text is partially obscured by mold-covered cracks: HOLLDW SILENCE BOUNLER WASFUS There are several ...

This is the sixth puzzle in the Wormeus series and the second puzzle involving multiple Stickotaurs and wormhole puns. Wormhole-pairs are indicated with light green lines (note that this was ...

png with hidden message inside, but i cannot decrypt (understand) the message, do you have any suggestions? The code: h5BA68F35I_%3E%3B%3BG3gdc%3E%3EFF9g5deA82hhh%3F%3Ea%3B22gdh%3Ee%3B%3B%6025%...

Rita is sitting 5th from the left end of row and Sita is 11 th to the right of Rita and Tina is 4 th to left of Sita. Madhuri is 8th to right of Tina. What is the total number of students in the row ...

Rules of Snake: Shade some cells to form a non-intersecting path which does not touch itself, not even diagonally. Black circles must lie on one end of the path. White circles must lie somewhere ...

Prologue Three friends wanting to earn the marvelous puzzling space prize offered by a supercomputer, joined a competition. Here are the competition's rules they read out in the competition ...

Fillomino rules (taken from Nikoli): Fill in all empty cells with numbers under the following rules. Divide all of the board into blocks. Fill each block with the same number horizontally or ...

I was playing Minecraft the other day and came across a beautiful splash message. Subsequently, I was inspired to create a puzzle for it. Svir, look out below! Shorty's slang stays surprisingly stout....

In a family of eight persons - P, Q, R, S, T, U, V and W - there are four males and four females. There are three married couples and two persons are unmarried. Each of them reads a different magazine,...

I have recently started honing my problem-solving skills, starting with number-related puzzles. Cryptarithms have appeared frequently, so I was wondering whether there is some sort of general approach ...

An old self-stalemate puzzle has been popping up in my feed lately. I was unable to do better than the existing answers, so I created a different puzzle from it. For reference: One-sided chess: Can ...

Please find below a variant Sudoku which incorporates elements of Star Battle. The Sudoku is a standard irregular Sudoku, and the clues outside the grid are sandwich clues: the sum of digits strictly ...

The answer is four numbers. We are four brothers. Two of us are twins. Our first brother born in February and the older in September.

Three Blue Moons in One year, impossible? A few years ago, on Nov 15 '17 at 6:00 Jamal Senjaya asked "Is it true that doomsday will occur in the year with a triple 3 blue moon?" Many of the ...

The solution of this riddle is usually given with explicit reasoning for two cases: Case where there is only 1 blue-eyed person, Case where there are 2 blue-eyed people. That logic is clear, and I ...

A person was shading several unit squares in a square grid, to create a path from the bottom left corner to the top right corner. The path stepped from each square to the next either horizontally or ...

Calculation is a solitaire variant known for its large skill ceiling; supposedly, the large majority of games can be won by skilled human players, whereas the games to be won by uninformed play are in ...

A user on Reddit, namely u/SeaworthinessOld8687, posed the following puzzle and I found it interesting. We have to find the “?” in the given set of number relations. “?” is a single-digit positive ...

Find the relation between these words a.k.a. clues in the sentences below: Zombies prefer to stay beside elevators. Evil country produces thousands of money. I was eating fast food in that vehicle. ...

Rules of Mid-loop: Draw a single loop passing through all of the black dots. The loop may not branch off, intersect, or move diagonally. The loop cannot bend at the black dot. Each black dots denotes ...

There are 52 cards on a table and numbered in order from 1 to 52 with number 1 on top. The following operation can be repeatedly done: split the pile into two piles without shuffling and take cards ...

Rewriting the puzzle in text: Move exactly 2 matchsticks to make this equality true: 4 + 9 - 7 = 1 Important Points: By the word 'move', I would also like to allow the possibility of 'remove', to ...

This is part 12 of the puzzle series that started at Living the traveller's dream. Each part is solvable on its own. Dear Puzzling, Unfortunately I’m nearing the end of my trip. Next week’s ...

Professor Matlogic posed this question to his smartest math student: "Famous mathematician Ensquare was born on this day, this month and this year AD at this time (hour and minutes) pm. True to ...

What is the next term in the following sequence based on Harry Potter? None, 16, None, 16, 5, 9, ?

You have probably played the classic game of Mastermind with 4 pegs and 6 colours. It turns out that the codebreaker can always find the pattern in 5 moves or fewer. Now consider the 2D version of the ...

What is the word in each case? I can attach or cut. I can be virtual or real. I can approve or penalize. I can separate or entangle.

D 11876 h 18422 R 5373 G 19114 S ? What number is represented by the question mark?

I have been playing Puzzle Storm on Lichess lately. Essentially it involves solving chess puzzles within a given time limit. Additionally, the player gets a time bonus for a certain number of moves. ...

It's been a while since I've posted due to being incredibly busy at work, so I've got a short and sweet Riley for anyone interested. Look for the infix, odious indeed, Obscenities and evil, a hex, ...

It was the final of the world-renowned cricket tournament - the Cinders (not to be mistaken for the Ashes). The Owls were comfortably the favourites. They were unbeaten in the last 4 years, whereas ...

The final answer consist of 11 letters and i'm looking for a name! After you find the answer to the puzzle above, use this (to get the final answer): 107 71 Hint1 Hint2

This is in the spirit of the What is a Word/Phrase™ series started by JLee with a special brand of Phrase™ and Word™ puzzles. If a number conforms to a special rule, I call it a Scary Number™. Use ...

Rules of Tapa (copied from here): Shade some cells of the grid. Shaded cells should form a single [orthogonally] connected group; no 2×2 square should be fully shaded. Some cells have clues in them. ...

Cryptic crossword type clue Palindromic medic with difficult personality loses title [7] (hints will be provided over time if necessary... )

This puzzle is based on the squares before the one that says, "what color is this?". This is a sequence of squares, try to follow the rule(s) for the puzzle. Can you solve it?

Find the hidden message in the following equation. The answer is not in verbal format. $$| -3xmy + xy_5 |^3 = 375g^3x^3$$

This grid deduction puzzle is a hybrid of three puzzle types: Cross the Streams, Tapa and Star Battle; rules for each are summarized below. In this grid, every cell is to be shaded either red, blue, ...

You are packing up after a week-long stay at the Verity Inn. You came here, to Truth Town, to visit your friend but now it's time to go home. You feel in good spirits as you pack your bags. As you are ...

This is my first time on Puzzling Stack Exchange. I challenge you to solve this puzzle I made, impossible to everyone else except for me as far as I know. Can you solve it?

Five positive integers should be put in a row such that each integer is the sum of the digit sum of its neighbours. The integers at the beginning and at the end have only one neighbour, i.e the first ...

I am walking down the streets of Paris when a street performer approaches me. He has a row of 3 cups facing down on a table. He places a ball under the left cup. He proceeds to swap pairs of cups, ...

My friend and I both sing in the choir of our local episcopal church, but our choir director is really strict. He doesn't like people talking much. At our last rehearsal, right at the end of a break, ...

The whole gang's here... except for one. Who's missing? https://soundcloud.com/nordus-rex/op-5-cacophony-in-c

Today is July, 17th - World Emoji Day 📅 🥳 So, today is time to post a new scrambled emoji tale. 😂😂😂😂 This is the emoji tale #3️⃣. Click here and here to see the previous two. Since my previous ...