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0
votes
1answer
9 views

How many cubes is this tringle made of?

can you guess? i know its a simple puzzle but lest just have fun
4
votes
1answer
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 ...
3
votes
0answers
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 ...
9
votes
2answers
252 views

Slitherlink Fillomino hybrid

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:...
9
votes
3answers
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 ...
4
votes
2answers
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 ...
11
votes
1answer
882 views

Prove your innocence

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. ...
6
votes
1answer
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 ...
6
votes
1answer
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 ...
6
votes
1answer
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, ...
7
votes
2answers
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 ...
19
votes
12answers
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 ...
7
votes
1answer
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 ...
5
votes
0answers
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
6
votes
2answers
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 ...
18
votes
1answer
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 ...
14
votes
1answer
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? ...
8
votes
1answer
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 ...
6
votes
1answer
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 ...
13
votes
6answers
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 ...
5
votes
1answer
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 ...
25
votes
1answer
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 ...
5
votes
1answer
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: ...
6
votes
1answer
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 ...
5
votes
1answer
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 ...
9
votes
1answer
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 ...
2
votes
1answer
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 ...
5
votes
7answers
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 ...
9
votes
3answers
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 ...
15
votes
1answer
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'...
9
votes
1answer
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 ...
4
votes
1answer
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-...
20
votes
2answers
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 ...
12
votes
1answer
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 ...
13
votes
1answer
1k views

Stuffing in the middle

What peculiar property do all these words have in common? ...
0
votes
0answers
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 ...
6
votes
1answer
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 →...
6
votes
2answers
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 ...
-4
votes
0answers
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 ...
5
votes
1answer
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: ...
1
vote
2answers
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 ...
4
votes
1answer
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, ?
11
votes
1answer
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 ...
10
votes
1answer
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 ...
4
votes
2answers
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. ...
9
votes
2answers
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, ...
3
votes
1answer
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. ...
6
votes
1answer
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 ...
8
votes
2answers
322 views

“Brainf*ck, but not really.”

Yesterday, I organized a contest with various challenges the participants had to solve. I put 6 very simple puzzles that were solved almost instantly, and the deadline was supposed to be until Sunday. ...
4
votes
0answers
108 views

What are the missing numbers in this group of 7?

The following groups of 7 number in each line, are related in each line in a unique way: ...

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