Fiddle diddle diddle, time for another riddle. This is another little puzzle I've concocted for you all this evening. The scenario is this: You awake in a small room with only one door. The door is sealed with a padlock, whose combination happens to be represented by letters. There are three let...

Note: This is just a story made up by me for the puzzle. This is NOT a real assignment. Therefore, please DO NOT close this question. Thanks! The Puzzle: So, one day, my Science teacher, who loves giving us challenges and IQ questions, gave us an interesting piece of homework. He gave us a w...

Assume you have 8 horses and you can race any 5 of them at time.After every race you get the 3rd and 4th fastest among them.How will you find the fastest among them.What would be the general approach if this was n horses. More than the solution i wanted to know your intuition or approach for thi...

There is a well-known puzzle: A man regularly travels up in a lift to his apartment only part of the way and then takes the stairs. However, when travelling down he travels by lift all the way. Why? Answer for those who want it although I imagine all puzzlers know it already. I have...

Start with a four-letter edible ectothermic animal. Remove three letters. Add a small insect. Take something you have when you don’t have something else, remove its last letter and add it. Rearrange a CEO and stick him on. Apparently they thought I was... what did the geriatric...

So straight into the problem. We have a 5 digit code, any place can take 1 2 or 3 How i find where the 2 is places (if placed) knowing this criteria?(hypotheses). 1)If the 1st digit is not a 3 then the 2nd is. 2)If the 1st digit is 3 then the 3rd digit is 2. 3)If 2nd digit is 3 and 4th is 2 th...

Consider a game of cards where the ususual deck of 52 (13*4) cards are used.Now the aim is to find the biggest prime no possible with the combination of cards numerals( That is 13*13+ 12 = 181 ). Find the minimum number of operator cards having funtion of '+,-,*,/'we need to introduce in the ...

I have a friend who lives really close to my house. I like him a lot, but he's got some really weird habits. He demands that I take him out to dinner pretty frequently—once or twice a week, it feels like. He likes to go to this one place that serves really, really greasy food. Like, I can't even...

Two couples have babies simultaneously in different hospitals. They don't know the expected gender, and each have one child which is F or M. How can they arrange in advance, given a guess each on birth, that at least one couple will correctly guess the gender of the other's child. This is...

Here we go again... You know what to do. hope end contact fire country prince tales home back darkness one clones stone secrets chest pearl

What common theme do the missing elements have? Group 1 Group 2 Group 3 Group 4 Image credits: 1.3 Hex, CC-BY-SA 3.0 2.1 Nevit Dilmen, CC-BY-SA 3.0 2.2 Cramyourspam, CC-BY-SA 4.0 3.2 Jens Buurgaard Nielsen, CC-BY-SA 3.0 4.2 Saffron Blaze, CC-BY-SA 3.0 Others PD/CC0

[This puzzle is heavily based on one from video game Zero Time Dilemma.] I have one of those weird individualist friends--to give you an idea, he spells his name H-E-N-🔟-R-Y. ...The 🔟 is silent, y'see. Anyway, he's easy enough to talk to but, like most people around this generation, he insist...