The Seashell Press
Noggintwisters

Table of Contents

Sample Chapter

Interactive Puzzles
Three Pennies
Monty Hall Problem
The Brooklyn Bridge
Einstein's Neighborhood

coin1
coin2
coin3

 

 

test

 

Here's the bet: Flip the pennies and if they all come up the same--all heads or all tails--then you win a dime. Any other combination, you lose a nickel. See, at least two of the three pennies are going to match every time, so on the third coin you got a 50% chance, right? Easy money!