An old and popular puzzle, recently revived on Twitter by Alex Bellos, Chris Smith, and others, asks to take the first 26 primes and relate each to letters of the alphabet (A = 2, B = 3, C = 5, ..., Y = 97, Z = 101), and use this code to find the (legitimate) English word that comes closest to a ...

Can you make a sentence only using words of exactly five letters? It must be a grammatically correct sentence.

A message has been intercepted in Morse code coming from one unidentified station to another, but the radio operators couldn't make any sense of it. Later, another message was intercepted. Here are the two messages in their original Morse code. See if you can decode them, then figure out what sor...

The wife was out, the father was in, the men drank gin, the cards were played, it was hand made, the house was still, he wrote his will, then turned over, he found clover, so the phone rang, he would hang, but the gun went off, he paid the bill, but made nil, another coughed, the man hadn’t won, ...

You received a message. It was as follows: We will add u where necessary, for now solve this on your own: 01DD01DD02790265028720028E028701DDu1D09u20pu025020p01DD0279pun02652001DDu1D09u (0), (3)2, (3)2, (11), (16), !(11), (1), (26), (11), (35), !(35), (35), !(1)2, (43), (3)2, (62), !(16), (1),...

It looks like the minesweeper tag has so many non-puzzle questions. What shall I do with them? Also, is this question fit for the "puzzling"site?

A Gobo is caught for leaving the school for the lnternet bar to play computer games without permission. He is asked to solve a problem. Put 4 mines in a 3 by 5 minesweeper grid to fill ALL the other cells with twos. ..... ..... ..... || v 22222 22222 22222 There is only one solution. ...

Ale. Hope this helps. Answer is one word.

I'm from Scratch. We're planning on building the Scratch Space Academy. Many of my friends, such as Bi, Tri, Quadri, Penta, joined us too. When we got to the site, suddenly, a worker asked me an awkward question. What's your name? I replied with this rebus. | | |\ ...

I'm looking at three sequences from the test at https://zollysite.com/iqtests/new/FZ-C/index.htm. I managed to answer 17 of the 20 questions, but I'm really curious about the other three. Q16: 5:1121681/25201, 3:?/51893 Q19: 15/20, 32/51, 78/5780, 34/? Q20: 1/9, 10/24, 1000/?

<=19 B: 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, ... P: <3 <3 <3 <3 <3 <3 <3 X X X X X X X X X X X X X X ... AB: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 20 B: 1, 2, 4, 8, 16, 32, 64, 128, 256, 1, 2, 4, 8, 16, 32, 64, 128, ... P: <3 <3 <3 <3 <

I found a very odd puzzle some time ago. I thought it was interesting, when I realized it was my own puzzle! Somehow I had no memory of creating it. Well, it turns out that I also created another puzzle, and something tells me they are related. Here it is: Raseac my queen 21 is not what you need...

Terrifying pawn invades half a prison Cooling systems contain matter for stories Pursue a train of thought broken by echoed shout of astonishment Bearcub's paw nearly has fruit Putting away a gent I ruined El Paso, per arrangement, produces a Malayan fruit Strip entire: pate till feet! Letter ...

Two positive integers can be joined with a straight segment if their sum is a prime and the segment doesn't intersect any other segments. What is the most number of pairs you can join if you can place numbers from 1 to 20 in two parallel rows?