# Questions tagged [logical-deduction]

A puzzle that requires formal logical deduction to arrive at the solution. This suggests more than merely reasoning through clues to find an answer (you might want [situation] for that).

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### A few (very) easy puzzles [closed]

There are 7 sisters in a house. First one is reading a book, second is cooking, third is playing chess, fourth is solving sudoku, fifth is doing the laundry, sixth is watering the flowers. Question: ...
312 views

### Double the fun with two puzzles [closed]

Here are the two puzzles that I have heard a long ago from my friends. 1) You can touch it with your right hand, but not with your left hand. What is it? 2) 10x+4x = 2y Then, what is x and y? ...
88 views

### Express 50 to 100 with constituent digits only…my 100th pzl on 50th day

Using the following rules only, Express the numbers from 50 to 100 using only digits in the number. Concise with minimum number of characters is preferred. No concatenation of numbers allowed. Only, ...
149 views

### Dollars to Kids

Daam has 8 children, named Esha, Hansika, Deepa, Rinsu, Ira, Vimky, Abhiteet and Aankhal. She has 36 dollars with her. One day, she gifted the dollars among her children such that the eldest child got ...
257 views

### What is the name of the sixth son? [closed]

Alice's father has six sons. The first is named Aegon I. The second is named Aegon II. The third, fourth and fifth are named Aegon III, Aegon IV, Aegon V respectively. What is the name of the ...
213 views

### Office floor assignment

A real estate developer has built a new office building of six floors, and numbered the floors 1 through 6 from bottom to top. Each of the six companies — F, G, I, J, K, and M — must be assigned an ...
294 views

### Scrap puzzle to count how many

There are 250 scraps. For each 11 removed, one extra can be obtained. How much maximum is possible, if one cut by one unit? I have read this somewhere, and one guy gave the answer as 25, but I can't ...
101 views

### Fibonacci again..Distinct Digits..Detail all your Deductive Steps [closed]

$ABB$ $CDE$ $GFB$ $DPGB$ $QPFR$ $RDFD$
233 views

### Two ropes and 45 mins [duplicate]

You have got two ropes of same mass, same material, same thickness and same length but mass is not uniformly distributed over the length. Both of the ropes burn in 1 hour but you cannot cut them in ...
176 views

### Let's look at this simple logical query [duplicate]

.: Aziz is talking with Rashid: " If I pass the exam on Friday , I will spend the weekend in the mountain. I will also bring my sister Nigora with me, If she feels ok". On Sunday morning Rashid meets ...
232 views

### General Reasoning Puzzle About a Tank.? [duplicate]

A tank has been filled with water. On each minute advance the tank will fill double than previous. ie after completing one minute the tank will fill double the water as that in previous.So the tank ...
109 views

### The Guys - Logic #2 : Ways to work

So the guys are back. This time, they decide to change up their way to work. Let's see what they're up to... Start the two minute timer... 1. Since Anthony and Charles weren't taking the bus today, ...
707 views

### Awesome Murder Mystery [closed]

Source: gpuzzles.com Note: The owner of gpuzzles.com did not allow me to copy the puzzle, However site is fine pasting picture.
309 views

### What are the missing items of this number sequence? [closed]

1, 2, 5, 13, ?, ?, 1 Please give explanation.
178 views

### Humphrey meets Laureen in town

Laureen is talking with Humphrey: "if the weather is good on Sunday I will go to the horse races. I will also bring my friend Sam with me, if he feels ok". on Sunday afternoon Humphrey meets Laureen ...
390 views

### Catch the liar(s)

Alice: "Bob is lying, so is Charlie!" Bob: "Charlie is lying, so is Alice!" Charlie: "Alice is lying, so is Bob!" Who is/are lying?
196 views

### Flowers in a circle Puzzle

Eight flowers, coded as A, B, C, D, E, F, G and H, are planted in a garden in the shape of a circle (not necessarily in that order). The flowers are of different types – Rose, Lotus, Daffodil, ...
185 views

Information : AB = 8 CD = 7 O,B,D are centers of the respective circles Hint: Find hidden information/clue from the diagram to solve the puzzle. Note: diagram is not to scale; it is just for visual ...
247 views

### How can we solve this question? [closed]

The 22 students of the course of History of Italian Opera must write a short paper about at least two composers, they have a better grade, if they choose to write a paper about one more composer. ...
2k views

### The Two Identical Twins [closed]

There are 2 twins who think the same, look the same, sound the same, and act the same. The only difference is that 1 of them is male, 1 is female. Without asking the twins for their gender, how can ...
293 views

### Fish In The Fish Bowl [closed]

There are $x$ fish in a fish tank. They get fed the same fish food every day. They have varying opinions on the food. One fish says he only likes fish food that starts with the letter A. ...
108 views