The Power of Compound Interest Test Your Investment Knowledge! How much do you know about investing? Take our quiz and find out instantly. First Name Last Name Email Address Thank you! Oops! Learn how to harness the power of compound interest for your investments. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Contents Surprise! You’ve Got Money! Here’s a quick guide to checking to see if you have unclaimed money. Life and Death of a Twenty Dollar Bill How long does a $20 bill last? What Is My Current Cash Flow? Assess whether you are running “in the black” or “in the red” each month.