# Questions tagged [logical-deduction]

A puzzle that needs formal logical deduction to arrive at a solution.

1,744 questions
2k views

### 100 Fruits for 100 Dollars a more challenging version

This is a more challenging version of the reported puzzle " How will you get 100 fruits in Rs. 100? " Bob buys 4 different fruits for exactly 100 dollars Jackfruits cost 15 dollars each ...
96 views

### Horror Episode #4: Feeling Drained

A sewage worker was tasked to go down a manhole to clean up a clogged pipe. At first it didn't seem like much, just another ordinary day on the job. He went down into the manhole truly expecting ...
143 views

### Golfing match with Jim, Joanne, Ed, and Emily

Jim, Joanne, Ed, and Emily are standing on the first tee of their favorite golf course, about to begin a partners match, (A partners match pits two golfers against two other golfers). They are ...
160 views

### Language Communication Puzzle

5 professors — A, B, C. D and E — met at a conference and were planning to discuss their Ideas with each other. Each professor speaks exactly two languages among English. French. Russian. Chinese and ...
239 views

### Bike Riding Puzzle

Eight persons, A through H, were standing along a circular track, not necessarily in the same order, such that the distance along the track between any two persons standing adjacent to each other was ...
134 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 ...
200 views

### Lots of children with Halloween candies

You are a teacher in a big kindergarden and halloween was just yesterday. You decided to put the children into a candy race by dividing them into 19 groups to gather candies from houses nearby (they ...
234 views

### The ability-swap-circle chess

This question was inspired by this question: A Battle of Dysfunctional Kings (Chess). What would be the shortest possible mate, if: Every piece moves in the same way. The way the pieces move ...