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4
votes
2answers
25 views

What was this unstoppable vehicle?

The other day, I was taking a driving lesson. My instructor was sitting directly behind me, as usual, while I was driving steadily at about 60 miles per hour. The instructor told me, "Slow down to 40 ...
-1
votes
2answers
29 views

Previous palindrome date

2nd of February this year will be a palindrome date, because 02/02/2020 reads the same forwards and backwards. But when was the previous palindrome date?
5
votes
0answers
35 views

An Enigmatic Price List

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2
votes
0answers
41 views

You just realized I am doomed

You just found a game despite the World War III, which was a game by the computer experts before the war. There went a six-limbed, not an insect. I was not blind, I sincerely swear. I ate ...
0
votes
0answers
41 views

Obtaining three equal factors from a given number

Lets have two sequences. S1 12, 45, 171, 648, 2457, 9315, 35316 and S2 21, 81, 306, 1161, 4401, 16686, 63261 The ratio of the last two terms $\dfrac{63261}{35316}$ is almost equal to $\sqrt[3]{...
-1
votes
1answer
55 views

Modular exponentiation. Why all different? [closed]

Why is it if we use 1 2 3 4 mod 5 and we take x^3 of this numbers, we come to: 1 3 2 4 (all numbers are different as you can see)
10
votes
2answers
159 views

This One Word Will Capture Your Attention

My prefix might be a bash for computer users. My first infix is a lap, perhaps. My second infix is an antioxidant, kind of. My suffix is a small island. When I'm assembled, I'm strangely ...
4
votes
1answer
43 views

What is the name of this puzzle with two overlapping circular tracks of smaller objects (spheres in this case)?

I have an old, poorly constructed puzzle: I've seen a better version of this, but all the internet searches I've tried have yielded either artistic designs or metal puzzles of interlocking rings. ...
-3
votes
0answers
65 views

I love books and to read them and count them but I didn't have enough time! [closed]

So, I have ten books. My friend from Indonesia gave me ten and my friend from New York gave me 75. Then my sister took 4 but my brother got 1 back. Then I sold 15 to my friend from India and 5 to my ...
9
votes
1answer
468 views

One piece of a destroyed chess board

Once I met a friend and he told me the following story: I recently cut my wooden 8x8 chess board into different rectangular pieces along the edges. Each square of the chess board has a length of one ...
6
votes
3answers
323 views

I'm a total sucker

"I am trash", my inner self cried; that I might be clear - I'm empty inside What am I?
-8
votes
1answer
82 views

What is the Snake doing?

What is the Snake doing? I think it has been trying to communicate with me for these past 5 years. `1234567890-=+_)(*&^%$#@!qazxswedcvfrtgbnhyujm,kiol./;p[']\<>:?"{}}|
7
votes
0answers
180 views

Find the next number in the sequence: [12, 13], 25, 58, 52, 98, 108, 780, 568, 306

Given this sequence: [12, 13], 25, 58, 52, 98, 108, 780, 568, 306 What is the next number? Note the square brackets. Hint: Hint #2:
7
votes
1answer
144 views

Cube Tubes & Cube Loops

Given a three dimensional n×n×n cube containing n^3 cubes of 1×1×1, Define a cube tube to be a sequence of 1×1×1 cubes from the n×n×n cube such that: 1) No cube appears in the sequence more than ...
-1
votes
2answers
99 views

How to solve how many times the ball collides with the corner [closed]

In the cartesian coordinate system, four points (0, 0),(20, 0),(20, 19) and (0, 19) are used as vertices to draw a rectangle. At first, a ball with negligible size is at the (0, 0) point. It then ...
4
votes
3answers
172 views

Combinations and the vertical brother

When the vector product politely greeted the king, and when the symbol of faith was with ribbon fit, we went silent for the kill. Hope you get the hint.
9
votes
3answers
186 views

Lunch time riddle

Collecting us all - quite an achievement Given that we are infinitely many Herculean task - some would say twice so Which is wrongly done for the sake of it. Nowadays a hobby, or ...
7
votes
2answers
169 views

Keep it simple!

Across 5. A retired grandmother accommodating man with amazing deal and great price (2,3,3,1,3) 10. Fourteen pounds – unlimited amount of weight (3) 11. Civil engineer is somehow very sour (8) ...
40
votes
4answers
3k views

Prime Number Snake

Place numbers 1 to 100 in the cells of the 10 x 10 board below in such a way that consecutive numbers occupy neighboring cells (either horizontally or vertically). Shaded cells should contain only ...
4
votes
1answer
328 views

Calculators are bad at Arithmetic

Consider the following fraction: 17/30 Punch this into a calculator and you'll get the following answer: 0.566666666666666666666666666667 However, I disagree. I say the answer is most ...
14
votes
3answers
759 views

Returning with solution in hand

My beginning, as you may see, has a unit of account. That it does take first parts for me is clearly paramount. My middle, for writing refined, is a symbol for its correction. If you look, then you ...
14
votes
1answer
314 views

A series of fortunate transpositions

Using only a sequence of transpositions, see if you can take this: to this: while maintaining English words on each of the three horizontals. At each step, you may transpose any two neighboring ...
-3
votes
2answers
153 views

Identify me through my hobbies [closed]

Rule: I will be posting one hobby per day (in no particular order)(was that a hint?) until the riddle is found. The riddle's answer is the name of either the real human or their persona. I ...
11
votes
2answers
436 views

What was once thick and green

The following is an adaptation of a Riley riddle. Good luck! A is a friend and foe of the wind Without B, wheels will go astray C bears around it what all others of its kind conceal The answer ... ...
16
votes
1answer
406 views

A solvable Riley Riddle

My prefix is one that can be just plain rude, To get my infix, I think you may need to brood. My suffix can be seen in the actions of angry dudes All in all, I am something that 'eats food'
15
votes
1answer
373 views

A very strange character

My mouth can kill, but my eyes can only damage. Religious people turn into atheists because of the offhand positions my golf ball is in. I conceal what I wish to, as small people tend to do. I'm an ...
-5
votes
4answers
206 views

The dimensional Portal

What am I? I am like a portal between two worlds, where neither one of them is our world. The second world is mirrored to the first one, but I am not a mirror. Hint Hint 2
7
votes
1answer
143 views

My prefix gives a lesson; my infix makes a sound

My prefix gives a lesson My infix makes a sound My suffix is a tunnel to keep smoke off the ground For a kingdom that's worthy Though it stands tall If it does not heed this ...
2
votes
1answer
162 views

Their mistake or mine?

I've found Pepper's Puzzles to be a very nice introduction to picross puzzles, with a cute anime girl to boot. While I've steadily improved in my deductive powers and the logic inherent to nonograms, ...
21
votes
1answer
2k views

Riddle of the Black Knights

As per their long-time ritual The Black Knights sat in a circle. The captain sat at the head, and to his right the colonel. A runt sat left of the captain, half the size of the colonel. A ...
26
votes
9answers
11k views

I can run, but I cannot walk - What am I?

I can run, but I cannot walk. Sometimes I have insects hiding inside of me. I can be written in many different languages.
14
votes
11answers
6k views

I'm a remorseless killer

Locked in an eternal struggle to impede the son, By natural law, I am the true heir apparent, I am voracious, but nothing will whet my appetite, Until the day comes to reign over the masses, ...
16
votes
8answers
5k views

I am in the beginning of time and space - What am I?

I am in the beginning of time and space. I stand for nothing, but I mean a lot. I cannot be divided into parts. What am I?
14
votes
1answer
499 views

Ten-second riddle

My start's somewhere down below My middle's what sleep does bestow My end's a value close enough My whole's probably not that tough What am I? A Riley Riddle
1
vote
3answers
1k views

The missing number

The integer numbers from 1-30 are mutually communicated to you one by one in a random order (one number about every 5 seconds). However exactly one of those numbers is not communicated. What is a ...
0
votes
2answers
109 views

Rugby Mascot question

Why is Leo here an appropriate mascot for Leinster Rugby? [Disclaimer: You're more likely to get this if you're from Ireland]
10
votes
1answer
377 views

My Mother's Dish Collection

From every trip she makes, my mother brings as a souvenir a well-decorated dish to hang in a wall. She now has a collection of 12 dishes, all disks, of radii 1, 2, 3, ..., 12 inches respectively. ...
0
votes
1answer
181 views

Circular arrangement with professions and age based puzzle [closed]

Eight people, named A, B, C, D, E, F, G, and H; who work as a dancer, singer, lawyer, painter, doctor, teacher, architect, and professor; are 25, 40, 45, 29, 66, 24, 21, and 34 years old; although ...
12
votes
3answers
1k views

What time is it?

Bon Giorno! 5 20 14 5 4 14 5 16 15 9 26 9 14 9 1 3 9 20 1 13 5 20 1 13 What time is it!?
7
votes
1answer
2k views

If you gently squeeze me with your hands, I'll get hard like a potato

If you gently squeeze me with your hands, I'll get hard like a potato. Can you guess what I am? (This is my translation of a famous riddle.)
7
votes
1answer
380 views

Call for help, there's something amiss!

Eleven gents in academic training environment Exist as groups under elevated superiors And by organizing ranks and, together, inspiring very excitable little yippers Enable convening those ...
2
votes
1answer
192 views

A challenge-find the shortest solution!

I come here with the challenge today-find the shortest solution! Recently, I set out to created the longest helpmate possible, not caring for legality or duals I have created this monster as a result....
-2
votes
1answer
208 views

Locations on the Earth that are all separated by the same distance

What is the maximum number of distinct locations you can select on the surface of the Earth, such that the distance between every pair of locations is the same? Assume that the Earth is a perfect ...
16
votes
1answer
399 views
+100

Starry Knight, or Crazy Heights

Apple Bounce Chip Desk Egg Fizzle Gird Heat Image Jewel Kangaroo Liquor Mustache Nickel Opportunity Person Quiz Reel Saturate Tornado Umbrella Vehicle Wallaby Xylophone Yak Zebra Alabaster Birth ...
19
votes
2answers
2k views

Vowelburger™ Riddle

(A new kind of riddle) I ordered 5 Vowelburgers™ with buns and meat only - help me identify each one from the description on the menu! $$ % custom template - do not reuse \def\S#1#2{\Space{#1}{20px}{#...
9
votes
1answer
229 views

This is a Rilerdl

My prefix's full of expertise My infix's in the diocese My suffix's citation missing link My whole's making a sink sync What am I? A Riley Riddle
18
votes
3answers
3k views

In times of crisis, I am priceless

In times of crisis, I am priceless. I’m illegal, yet permissible. Enemies call me despicable.. But what is my profession? That is the question. Concealed among bureaucrats, who administer ...
26
votes
1answer
1k views

This new puzzle type needs a name {3}

I believe I have invented** a new type of puzzle... What is its name? ** Well, 'adapted' an existing one, really... Colour-blind-friendly version available here. Those without colour-blindness ...
14
votes
0answers
226 views

Lost in Translation

You arrive on a foreign island, but upon heading to the local library, you find yourself unable to decipher the texts. You wonder what's caused this... ...
14
votes
6answers
6k views

I am enclosed by rock and ice - What am I?

I am completely enclosed by rock and ice. I see no light of day. No human has ever been here, but if you could come here then you wouldn't know what time of day it is. What am I?

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