Questions tagged [password]

A password puzzle focuses on finding a password to a challenge.

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80 votes
2 answers
7k views

A rude security guard

I was walking down a street, when I see a door, with a security guard. A man approaches him, and the guard flips a middle on him. "Well that escalated quickly." you think. The man, unfazed, replied ...
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62 votes
4 answers
3k views

Gain Access to the Café's Internet

There's a cool new cybercafé in town called #DECAFE The café charges a fee to use their computers, but if you BYOC (bring your own computer) you can get on their ...
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57 votes
14 answers
12k views

What's the Password, again?

War has broken out in the kingdom. The king's castle is guarded pretty heavily, by guards with instructions to kill anyone who can't produce the correct password. Unbeknownst to the guards, the ...
  • 5,745
55 votes
4 answers
6k views

The Secret Club

Since I was a kid, nobody wanted me in their super-exclusive clubs... the "House in the Tree Club"... the "Girls Only Club"... the "Whatever you are NOT Club"... but now that I am a skilled (and a bit ...
  • 2,635
50 votes
10 answers
4k views

My Puzzling Girlfriend

So it's my birthday yesterday and my girlfriend comes over. We're kidding around and I asked her if she'd gotten me something good. She said: "Oh, yeah! Big time!" Well, of course I wanted ...
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37 votes
2 answers
7k views

Escape the dungeon, by deciphering the codes and navigating the rooms to find a way out

You have been thrown into a dungeon with many rooms; you don't know who did this or why. You start in room 37. You might be thinking "Why 37?", so I will explain this: "Why not?" You need to find ...
29 votes
6 answers
3k views

The Security to the Party [12] (now with party soundtrack!)

This party is so popular! So just like before, you want the spaghetti recipe yada yada yada... basically, you want to get in to the party. The first guest arrives, the security guard says "6". The ...
  • 8,752
28 votes
2 answers
1k views

When you give it out in the wrong way

To know the secrets of the universe and hence attain ultimate power, you just need to enter a four-letter password. All you have is a sheet of paper with the following written on it, which is supposed ...
  • 18.3k
27 votes
2 answers
4k views

What's the password?

War has broken out in the kingdom. The king's castle is guarded pretty heavily, by guards with instructions to kill anyone who can't produce the correct password. Unbeknownst to the guards, the ...
  • 5,046
24 votes
5 answers
4k views

Crack the Terrorist's Password!

You work for a secret organization, and recently the personal data of a terrorist leader has fallen into your hands. This would be great news, except for the fact that all the files are locked with a ...
  • 17k
24 votes
6 answers
932 views

"Free" tickets?

Today I received an email from a friend: ...
  • 6,810
23 votes
6 answers
2k views

The harsh password change

My roommate changed my password! The jerk got onto my machine, while I was in the restroom, and changed it. Sigh... As he left the room, he gave me a single slip of paper, that he claimed had a ...
  • 8,422
22 votes
3 answers
8k views

Wife can't figure out husband's secret account password

John and Jane are married and keep a joint account at ABC Bank. They agreed that all of their income should go into the joint account. In early 2014, John started a new job at a software company, ...
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22 votes
4 answers
3k views

The Secret Club (another one?!?)

Well... my first attempt to enter a Secret Club wasn't successful (see: The Secret Club), but this time I'm sure that nothing can stop me from reaching my goal... I've discovered this new club, whose ...
  • 2,635
22 votes
8 answers
2k views

Find the two master lock combinations

Jeremy is a store owner. He uses combination locks like the one below at all of his store locations to secure cabinets of semi-important documents. Each combination is made up of 3 numbers, each ...
  • 17.4k
22 votes
1 answer
1k views

Counter, Clock and Wise

Remember I told you that I am slowly turning eccentric? Well, turns out, it's worse than I had imagined. See, writing some random words on a piece of paper is one thing, and taking apart the hands of ...
  • 18.3k
21 votes
3 answers
2k views

Pictures in the sand to satisfy a guard

A party is being held at a local mansion. The host is very rich and his success is because of one thing - his famous recipe for spaghetti. He has pushed your tiny spaghetti startup to the side, and ...
  • 446
19 votes
3 answers
3k views

End of the Maze

This the final installment of the Maze series. Here is Room 1 and here is the previous room. After you enter the answer from Room 5, you wait for the door to de materialize as usual, but nothing ...
  • 11.5k
19 votes
4 answers
2k views

Escape The Strange, Code-Filled Cave

You awake in a weird cave with something strange written on the wall. You find a small piece of paper on a rock. It says the following: Solving each code and entering it into the password entering ...
  • 1,254
19 votes
2 answers
3k views

The princess arrived safely at the castle

The princess took the correct and safest path on the crossroad, seeing lots of beautiful butterflies along the way and is now standing in front of prince Laniff's castle. However, it turns out she ...
19 votes
5 answers
1k views

A secret reception

This is it. This is the night. Megina, a fellow puzzler, has been invited to a secret reception, by a secret society, in a secret place (yes, a lot of secrets). She has already discovered the place. ...
  • 11.4k
19 votes
1 answer
1k views

Bicycle Lock Combination

My bicycle lock looks like this: This rebus helps me remember the combination: I read it left to right, top to bottom. What's the combination, and why?
  • 17.4k
19 votes
4 answers
622 views

Baby don't hurt me no more

You've been taken captive by a spy organization who seems convinced you're an agent for the other side. You've already spent a miserable day of questioning and torture and have no wish to spend ...
  • 41k
19 votes
1 answer
1k views

How did my little sister survive?

In a far other universe, my little sister was trapped in a cave. Surprisingly for humans, in this universe, all caves are electronic. This electronic cave had nothing but 5 buttons, two little screens,...
  • 5,923
19 votes
1 answer
886 views

Breaking a systematic password

Saturday, 2nd April 2016 - somewhere several meters below surface "Report, agent." "Mission 'Capture the bird' was not fully successful, sir. The ...
  • 18k
18 votes
1 answer
5k views

My password is 2

Evil mastermind PhD Evil, is trying to destroy the north pole. In order to foil his plan you need to log on to his computer. Alas you don't know the password, thankfully PhD Evil thinks he is too ...
17 votes
1 answer
2k views

Speak the password and enter, if you dare

Speak the password and enter, if you dare. Can you find a logical path through the maze and explain why it is correct? What is the password? Rules: must visit each square at least one time (or more) ...
  • 18.2k
17 votes
2 answers
957 views

The Mathematics Club

There's a new cool kids club in town called the Math Club. Of course you want to go in, but the only way in is if you know the password. Next to the door (and the bouncer) is a large sign that says: ...
  • 7,726
16 votes
5 answers
2k views

Should the angels play their game?

Two angels in heaven want to play a game. One of them comes up with an arbitrary, computable function from the integers to the integers. The other angel has to guess what it is. The second angel can ...
  • 1,264
16 votes
4 answers
2k views

A Simple Password Puzzle. Or Maybe Not

Prologue: It's me, KryptonOmega, back with a password puzzle. Enjoy! Puzzle: Edits: Add "unique" in condition 2 for clarification. Length of answer is five. (Why would you expect more ...
16 votes
6 answers
2k views

Five puzzles in one!

This is an experiment of nested puzzles. The answer of each puzzle is necessary to solve the next one. Sometimes you have to manipulate it, sometimes you have to open your eyes (and mind). Run, to ...
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16 votes
1 answer
1k views

Given these numbers, find the secret word

My son is 12 years old and his task was to find an English word from these numbers: 13; -8; 2; 2; -6; 12; 2; 6; -1; -12 where ...
  • 263
16 votes
1 answer
922 views

A worthless little puzzle

A quick puzzle to pass the time. Find the three word passphrase from the clues. You will know the answer when you see it. Clues: ale/ail/gale conal/vane Nero/sib oiler/piper rant/wallow
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16 votes
1 answer
1k views

The Third Room of Numbers Dungeon

After being enslaved by the evil Lord Numbers, you have been forced to navigate his treacherous puzzle rooms. After easily defeating the first and second puzzle rooms, you stumble into the third room, ...
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15 votes
11 answers
2k views

Defuse the bomb, Mr. Rossi!

This is a very hot summer in Rome and you don't know what to do. You are the best detective in town but no crime seems to happen. You are all the day in front of your PC trying to solve some puzzles ...
  • 648
15 votes
4 answers
2k views

Can you escape?

You have to find a passcode to escape from a kidnapper. Enter the right code or the room will be flooded with water. The kidnapper will give you hints, as he thinks, you are not smart enough. Hints: ...
15 votes
4 answers
794 views

Doorknob's Revenge

Disclaimer: I'll be using the gender-neutral pronoun "xe" for the singular third person. After escaping from d'alar'cop's cellar, Doorknob♦ was understandably upset. After almost two months ...
14 votes
2 answers
2k views

My mature friends

My friends are so mature... They played the time old prank on me of changing my password on my phone. Now I'm locked out and can't access my files. They gave me this clue: A atnas devil sa a ...
14 votes
3 answers
3k views

Room 1 of the Maze

You wake up in a dark room that you don't recognize. The walls are made of some material you've never seen before. There is a door with a keypad next to it, and a small platform suspended in air in ...
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14 votes
4 answers
1k views

The Security to the Party [Part 30] [#1]

Thus is a multi-part party installment. A famous host is storing his party recipes on a data server, and rumor has it that the passwords are in his house. He has another party today without his ...
14 votes
1 answer
771 views

Discovering the past

An entry in the 19th fortnightly challenge... Soon it'll be your 20th birthday. Time is ticking... and you're spending it in the car going to check the new house you will be moving into with your ...
  • 1,894
14 votes
2 answers
1k views

The security to the murdered president’s “what am I?” riddle party [Part TREE(3)]

François Hollande, famous Cordon Bleu chef that he (like all French presidents) is, has invited a select few guests to his party, where he will be showing off the secret cheese-making process that ...
  • 2,107
14 votes
1 answer
821 views

What's the passcode?

One morning, as you wake up, you feel something on your face: It's a letter. As you take it off your face to read it, You fall off your bed. Uurrrgh, you say and stand up. The letter says: ...
  • 1,802
13 votes
7 answers
2k views

♦ Series - Getting a free donut

Introduction There is a way to get a free donut at a coffee shop near the Stack Exchange offices. However, you are required to solve a phrase and convert it into a single number. Codes You watch ...
13 votes
4 answers
2k views

Save d'alar'cop by Helping Him Defuse The Bomb Placed By An Assassin

d'alar'cop was busy solving puzzles and making riddles at his home. He heard a knocking on the door. He got up and reached the door to answer the knocking. Once he opened the door, no one was there. ...
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13 votes
1 answer
3k views

The Security to the Party [Part 2]

A party is being held at a local mansion. The host is very rich and his success is because of one thing ~ his famous recipe for Spaghetti! The only guests that may attend are people who correctly ...
  • 3,349
13 votes
2 answers
1k views

What was my luggage password

So I went to the new high security airline and gave them my luggage, then they told me, I needed a password. Thankfully I always used the same number lock for my luggage. Alas, they said my password ...
13 votes
1 answer
376 views

I went on a world tour and came back home

After you enter the right password, once again the door opens before you. You are not surprised to see another door blocking your path; looks like they want a three letter password this time. However, ...
  • 18.3k
12 votes
1 answer
873 views

Poring Over the Numbers: A Hidden Message

I thank my lucky stars I'm able to write this to you. I spent a hefty percentage of my remaining cash at the courier's office and I want to underscore the importance of this communique. If a man comes ...
  • 10.1k
12 votes
1 answer
729 views

You Force Heaven to be Ecstasy

You are Agent X, an enterprising NSA analyst who's been assigned the task of spying on Bill Krill, a US citizen suspected of unpatriotic opposition to warrantless NSA spying on American citizens. By ...
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