## PUZZLE… PUZZLE… PUZZLE…

December 15, 2014

## IEEE Weekly Puzzle #29 – The Sum Is 1,000

December 11, 2014

The sum of 25 different numbers is 1000. If the largest possible sum of the smallest 15 of these numbers is 525, what is the smallest possible sum of the largest 15 of these

## PUZZLE… PUZZLE… PUZZLE…

December 11, 2014

Here are three puzzles: a Samurai Sudoku, and two regular Sudokus. The Samurai Sudoku puzzle is made up of five smaller Sudoku puzzles: one in the center and the other four overlapping the corner

## IEEE Weekly Puzzle #28 – Lucky Number

December 1, 2014

We have a lucky number consisting of four different digits. Both the first three digits and the last three digits of this number are square numbers. What is the lucky number? The Prize for

## Puzzle

December 1, 2014

Here are three puzzles: a Samurai Sudoku, and two regular Sudokus. The Samurai Sudoku puzzle is made up of five smaller Sudoku puzzles: one in the center and the other four overlapping the corner

## IEEE Weekly Puzzle #27 – Balls

November 24, 2014

There are 30 balls in a bag containing red, black and white balls. -Most of the balls in the bag are black. -To guarantee taking out at least 2 balls of each color, you

## Puzzle

November 24, 2014

Here are three puzzles: a Samurai Sudoku, and two regular Sudokus. The Samurai Sudoku puzzle is made up of five smaller Sudoku puzzles: one in the center and the other four overlapping the corner