Classic Weighing
7 min read this is a classic problem which i have heard many times before. this is the “harder” of the two problems, […] Read article
Data Structures, Logic Puzzles, String Manipulation
Logic Puzzles, Math Problems
Monty Hall Problem
4 min read Another well known problem in probability is the Monty Hall problem. You are presented with three doors (door 1, door Read article
String Manipulation
Gold Chain
2 min read A man has a gold chain with 7 links. he needs the service of a laborer for 7 days at Read article
Algorithms
Surgeons
2 min read A one armed surgeon with a hand wound needs to operate on three patients. the surgeon only has two gloves. Read article
Bit Manipulation, Brain Teasers
Clock
2 min read Part I: what is the angle between the minute hand and the hour hand at 3:15 on an analog clock? Read article
Math Problems
Mountain Man
2 min read TL;DR — Confirmed — it’s the classic mountain-climber puzzle (up on day one, down on day two, same 6 a.m.–6 p.m. Read article
Algorithms, Bit Manipulation, Brain Teasers, Data Structures, System Design
Treasure Island
4 min read You find an old treasure map in your grandma’s attic. the map shows a cannon, a coconut tree, and a Read article
Logic Puzzles
Screwy Pirates
3 min read A. first i would just like to say i am so glad jenna got voted off survivor. yuck, i couldn’t Read article
Math Problems
Ants on a Triangle
2 min read There are three ants on a triangle, one at each corner. at a given moment in time, they all set Read article
Brain Teasers
One Mile South
3 min read How many places are there on the earth that one could walk one mile south, then one mile east, then Read article
Algorithms, Math Problems, Recursion, String Manipulation
Cube
3 min read This is difficult to describe in words, so read this carefully, lest there be any confusion. You have a normal Read article
Logic Puzzles
More Hat Puzzles
3 min read I buried four fishermen up to their necks in the sand on the beach at low tide for keeping their Read article
Logic Puzzles
Coin on a Table
2 min read You die and the devil says he’ll let you go to heaven if you beat him in a game. the Read article
Math Problems
Noodles
3 min read There is a pot of N noodles. (so there are 2N ends). A person randomly grabs two ends and merges Read article
Algorithms, Logic Puzzles, Math Problems
Heaven
2 min read A person dies, and arrives at the gate to heaven. there are three doors. one of them leads to heaven. Read article
