# All Questions

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9 views

### How many cubes is this tringle made of?

can you guess? i know its a simple puzzle but lest just have fun
41 views

### What is a CirKle Word™?

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 word conforms to a special rule, I call it a CirKle Word™. Use the ...
107 views

### Trying to figure a math puzzle/equation for a surprise trip using the date [on hold]

I planning a surprise trip for my husband's 40th. He is a math geek. I am not. My plan is to tell him in a series of riddles/puzzles that he needs to figure out. We are going to LA to see his ...
252 views

This puzzle is a combination between a Slitherlink and a Fillomino. You should put a number in each square and draw a single closed loop over the grid such that the following properties are satisfied:...
302 views

### Cultural before-and-afters

Each answer to a clue will consist of the titles of two works or series put together, where the last word of the first title matches the first word of the second title. Note that the word match does ...
137 views

### So, what's to do?

It's White to move and draw the game. What must White do? You must provide proof for your claim of what's to be done by any reasonable means. This puzzle was created by Nikita M. Plaksin, and ...
882 views

Inspired by A double-agent with a conundrum. Everything is hypothetical and while the choice of countries are important, they serve no political purpose. Tension between the US and China is rising. ...
111 views

### What are the house numbers?

Following the last question " What is the corner house number?" here is possibly a more challenging version. Fill in the missing house numbers on the map shown below. The area is occupied by math and ...
169 views

### Very easy trigonometry question

There is a very well-known family of right triangles in Mathematics called "The Imperial triangles". Let me explain you how they are defined: We say $T_n$ is the $n$-th Imperial triangle if these two ...
85 views

### A Strange Safari

Well, my friend told me that he's just visited a safari. Being toured around, he was very surprised how the guide could spot those animals so quickly. He took some pictures of the animals, ...
862 views

### Earth rotation discrepancy

Some time ago, I discovered that planet earth's sidereal rotation period equals 23 hours, 56 minutes, and 4.1 seconds (see for example this Wikipedia article). The sidereal rotation is the rotation of ...
3k views

### Sun setting in East!

It was a bright and sunny day during April- May(can say, peak of summer) in a country in the northern hemisphere, near to the equator. I was wandering(on foot) through this country's vast and open ...
426 views

### A journey through letters and numbers

In the year 2407476658354979366708415043923125501315337890943021769230219230892355006879909214795402102204224, as cosmopolitanism is in the air and companies are more than ever bound to ...
184 views

### What is the relationship between the following numbers?

Specify the clue in this pattern: 22 12 0 15 18 15 27 26 18 13 8 22 27 13 0
130 views

### Heyacrazy: “LMI”

This is a Heyacrazy puzzle, originally constructed for a test for Logic Masters India. Rules of Heyacrazy: Shade some cells of the grid. Shaded cells cannot be orthogonally adjacent; unshaded ...
1k views

### Bankers with rancor

Three colleagues at the bank are boasting to each other… Colleague 1: “Ask anybody – I’m clearly the best.” Colleague 2: “And how do you figure that?!” Colleague 1: “Well, just ...
1k views

### What brought these couples together?

Sometimes it's difficult for outsiders to understand what brings a couple together. What brings each of these couples together? ...
72 views

### A mini cryptic cube

A quick teaser, enjoy! Across 3 Dance bores serious (5) 6 Light angry look (5) 11 Finally asked it to agree (5) 12 Rails - cunning homes of thieves (5) 15 Trap saner design (5) 16 Kingdom with real ...
118 views

### Heyacrazy: Forks

This is a Heyacrazy puzzle. Rules of Heyacrazy: Shade some cells of the grid. Shaded cells cannot be orthogonally adjacent; unshaded cells must be orthogonally connected. When the puzzle is ...
3k views

### Which household object drew this pattern?

In my home is a common household object. I securely attached a marking pen to some point on the household object, and I placed a sheet of graph paper next to the pen, so the paper would not move. I ...
86 views

### Ambitious Puzzler's Masyu

Contrary to the lazy puzzler, the creator of this masyu is too ambitious that he adds not only one but two extra stones, so the puzzle is unsolvable. Finish his job for him by removing those ...
1k views

### Three Singles in Three Clubs

These three belong to three different clubs. First one, very popular, is singles only club. It is closed for new membership. Second one, very useful, is for singles and couples. It is open ...
228 views

### map 5 unequal ranges to id

This is actually coming from a business place, but it's all about being able to do math tricks, and that's why I'm posting here. I want to implement the following function: ...
123 views

### A song from a play

I went to a play recently. Immediately after the intermission, some cast members sang this short (and terribly written) song: This treatise we sing on this section of stage is not so long as to ...
162 views

### What is an Independent Word™?

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 word conforms to a special rule, I call it an Independent Word™. Use ...
305 views

### Heyacrazy: Crosses

This is a Heyacrazy puzzle. Heyacrazy is an original genre, inspired by the "two border" rule of Heyawake and Heyawacky. Rules of Heyacrazy: Shade some cells of the grid. Shaded cells cannot ...
71 views

### A Hearty Warm-up

Sliding-block chess puzzles have gone a little cold, so here be a hearty warm-up! ;D In the below position that I created, it Black to move, but there is a twist: the stipulation is that it is a ...
819 views

### Natural Pattern

Once, while I was traveling on a vehicle in the Caribbean, I watched a pattern form over the course of about 30 minutes. The rendering below is an approximation of that pattern from memory. The gray ...
1k views

### The economy of trapping

A queen on the center of the board has 27 possible moves. Sometimes a queen can be trapped, like in the position below. Note: This is just an example of a what a trap should be like-every possible ...
703 views

### The sound of thunder's like a whip

The sound of thunder's like a whip, one takes a stab and makes a quip; uncaps a bottle, lights a pipe, accessing files of private type; a mental crisis, break of dawn, can experts solve what'...
220 views

### Room 7: Bits and pieces of Chinese history

Credit: Brandon X. You have just woken up. You recall the night before, being driven from your home to a luxurious hotel by some people of a company or organization or something-The Ofgelenkt ...
180 views

### Uncover Lenny Fingers' street hustle

Lenny Fingers is out on the street again, hustling people with his shell games. This time, he's using words. As you walk by, Lenny grabs you with an enthusiastic smile and shows you two words side-...
1k views

### Something in the TV

There is one answer that satisfies the title, and all of the lines below. I can bow to the enemy. I am the opposite of myself. I can help you, if you want to go back. I am known for staying ...
235 views

### Bill and Dan's Journey

What is this story about? (Apologies if at the end I improperly announce the answer.) Bill and Dan bravely ventured forth, eagerly hiking towards a notorious outcrop. Traipsing through the water ...
1k views

### Stuffing in the middle

What peculiar property do all these words have in common? ...
111 views

### Lockpicking combinations [on hold]

A locksmith uses the tool below to pick a tumbler lock with 6 pins and 6 possible pin heights. Suppose she already knows the correct sequence in which to try the pins. How many combinations will she ...
257 views

### TechSupport Issue ID#812

User ID: 3Aq47h-20dpc8l Language: English (UK) Today I noticed a strange text file on my Windows 10 PC's Desktop called "README.txt". Curious, I opened it and it read START → 2↑ → P 3→ ↑ P 4→ P →...
333 views

### Double helix Assembly

A long chain of organic molecule will somehow snap on 3 links forming 4 shorter strings. Then realign themselves together or self-assemble to form a double helix dna strand. Like a twisted ladder with ...
126 views

### Real Life Chaos Theory Puzzle [on hold]

I accidentally threw a red at my teammate during a Mario Kart Wii organized race, causing someone else to be banned from a MKW lounge for a week as a result. Try to figure out the missing steps. If ...
462 views

### Hiker's Cabin Mystery | Pt. XV

You and the hiker walk through passageway and are surprised to find yourselves in a forest clearing. There seems to only be one path, but there is also a piece of paper nailed to a tree: ...
157 views

### Is it easier to control an unfair die than a fair die? [on hold]

First of all, I am not sure if this is the right place to ask this question, I wanted to post it at the mathematics community but also wasn't too sure. I read somewhere that when dice are fair, the ...
216 views

### Can you find the next number in the following series?

Replace the question mark with the next number. 14, 1, 13, 0, 23, 21, ?
231 views

### Peterhead Codes and Ciphers Club: Weekly Challenge

This is one of the cipher-based challenges I have created for my club. This is a lengthy puzzle so feel free to post partial answers. My golden rule is that moving something that isn't glued down ...
219 views

### Foul Psychology Question

According to our psychology examination, Mr. X Is afraid of heights as well as the cookie monster under his bed (1) Prefers to work late into the night (2) Has 20/20 vision with perfect ...
171 views

### The Dropper, But With A Twist

Here's a piece-drop puzzle of my own. In the below position, a White piece is to be dropped onto the board. This means that, before White can move, they must legally put a single piece on them board. ...
222 views

### A Philosopher's Dream

I am heavier than most, but I still run faster than you. Some mistake me for a fool, yet everyone else loves me. Even as centuries pass and empires disappear too-- I stay by their sides, ...
250 views

### The Roommates' Dilemma

2 roommates - Arjun and Bishan - rent a house with two rooms for a month. One room is 700 sqft in size and the other 300 sqft. Let's say that the rent is Rs. 100 for 1 month for both rooms combined. ...
103 views

### The Tripan Balance

The tripan balance is used for comparing different weights. For example, when the pans carries 7 balls,5 balls and one is empty. The heaviest tilt to lowest level while the empty pan is at the highest ...