## PUZZLE… PUZZLE… PUZZLE…

SAMURAI SUDOKU & SUDOKU 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

Read More »## IEEE Weekly Puzzle #35 – 9-Digit Numbers

You are to generate 9-digit numbers, using the numbers 1 to 9 once in each. The conditions are: – Consecutive numbers may not be next to each other. – Two odd or two even

Read More »## IEEE Weekly Puzzle #34 – Train

A train journey took 7.5 hours. Given that the train traveled each 75km section of the tracks in exactly 1 hour, what would be its maximum average speed? The Prize for This Question: Toshiba

Read More »## PUZZLE… PUZZLE… PUZZLE…

SAMURAI SUDOKU & SUDOKU 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

Read More »## IEEE Weekly Puzzle #33 – Same Digits

The following is known about a number: -It is a square number. -It consists of at least 4 digits. -The first and last two digits of the number are the same (AB…AB). What is

Read More »## PUZZLE… PUZZLE… PUZZLE…

SAMURAI SUDOKU & SUDOKU 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

Read More »## IEEE Weekly Puzzle #32 – Walking

You are walking on a long, straight road. Ten minutes after you start walking, a friend of yours also starts walking. If your friend’s speed is 10% higher than yours, when does he catch

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