You have three different stacks of coins. Each stack has at least one coin, and all coins in each stack are the same type.

The stacks look like this:

Stack 1: 1 cent 
Stack 2: 5 cents
Stack 3: 11 cents

You must move only one coin to make the three stacks have the same value.
Give a solution to the following puzzle.
Move the 1 cent coin from Stack 1 to Stack 3. That will make the three stacks have the same value (6 cents each).