Sum it Up
Problem: you are given a sequence of numbers from 1 to n-1 with one of the numbers repeating only once. […]
Algorithms, Bit Manipulation, Brain Teasers, Logic Puzzles, Math Problems, Recursion
Brain Teasers, Logic Puzzles
Pirates
Five pirates have 100 gold coins. they have to divide up the loot. in order of seniority (suppose pirate 5
Bit Manipulation, Brain Teasers, Logic Puzzles, String Manipulation, System Design
Fog Creek Programmers
100 fogcreek programmers are lined up in a row by an assassin. the assassin puts red and blue hats on them.
Bit Manipulation, Brain Teasers, Logic Puzzles
Bad King
A bad king has a cellar of 1000 bottles of delightful and very expensive wine. A neighbouring queen plots to
Brain Teasers
Jelly Beans
You have three jars that are all mislabeled. one contains peanut butter jelly beans, another grape jelly jelly beans, and
Brain Teasers, Logic Puzzles, Microsoft Interview Questions
Bridge
Problem: this one is a classic that many of you have probably already heard, but all the more reason why
Algorithms, Bit Manipulation, Brain Teasers, Logic Puzzles, Math Problems, System Design
Card Trick Without the Trick
This is a card trick without the trick. there is no sleight of hand, no tricks up my sleeve, no
Logic Puzzles
Pirates Revisited
A slightly different version of the original pirates problem (read that one first to get all the rules). 6 pirates,
Brain Teasers, String Manipulation
Fuse on Fire
A mad bomber is out on the job, making bombs. he has two fuses (pieces of string) of varying thickness
Brain Teasers, Data Structures, Logic Puzzles
Dave’s on Fire
dave winer is stuck on a deserted island, with lots of trees, which is very thin and ten miles long
Arrays, Brain Teasers
Chessboard
problem: using 31 dominoes, where one domino covers exactly two squares, can you cover all the empty squares on this
Logic Puzzles
Easy River Crossing
Three cannibals and three anthropologists have to cross a river. the boat they have is only big enough for two
Algorithms
Shapes
Part I: draw a square. divide it into four identical squares. remove the bottom left hand square. now divide the
Algorithms, Arrays, Dynamic Programming, Google Interview Questions, System Design
Webloggers
Five webloggers – joshua Allen, meg Hourihan, jason Kottke, robert Scoble, and joel Spolsky – were competing for karma points
Bit Manipulation, Logic Puzzles
Hard River Crossing
a disfunctional family has to cross the river. on one side of the river are a mom and 2 daughters,