Knowing the truth about these myths can help you avoid numerous mistakes.

FORBES: 10 Common Estate Planning Myths That Can Be Detrimental to Your Family

The Chicago Tribune reported last year that federal officials launched an investigation focused on O'Hare airport after numerous mistakes made by air traffic controllers.

CNN: 747 cargo plane clips commuter jet while taxiing in Chicago

Europe's economic malaise grew out of numerous mistakes.

WSJ: Sri Mulyani Indrawati: What Europe's Mistakes Teach Asia

Most active managers underperform the market because the costs are high and the behavior mistakes are numerous.

FORBES: Should I Buy Facebook Stock?