Here’s your chance to warm up your thinking powers with 12 brainteasers and riddles organized from simple to difficult. Ready the stopwatch app on your phone. Readers who can get eight or more items right in five minutes or less can claim bragging rights. Answers follow each question. Start Slideshow ›

An expanded whistleblower program helped the IRS collect more than $1.4 billion in underpaid taxes last year. Tipsters received over $312 million. If you are patient, there may be riches for snitches. Start Slideshow › Related Sponsored Content

With the ouster of David Pottruck, Charles Schwab is once again in the hands of its founder. In the beginning, Charles R. Schwab created the discount brokerage. And it was good. Schwab, the man, stood for the empowerment of the individual investor. He swore eternal hostility against every swindle, every conflict and every unjust regulation preventing the average investor from taking his or her place at the table of plenty enjoyed by the affluent. The masses fled to Schwab and found an...

Apology is not a get-out-ofjail- free card, but it’s less costly than the alternatives. In today’s unforgiving business climate, what exactly should CEOs say when they make a mistake or suffer a setback of their own making? There are really only two options. Plan A is to hunker down and hope that no one notices, disclose nothing, admit less, be stingy with facts and, when pinned down, delay and blame forces beyond your control. The business, under Plan A, is a fortress. The only protection is...

Most CEOs have a bias toward action, says Daniel Patrick Forrester, author of Consider: Harnessing the Power of Reflective Thinking in Your Organization. “This instinct may not always serve their organizations well. Many leaders say they want results, yet what they’re actually saying is that they want speed. But without time for reflection, they just get to a faulty destination that much faster. Essentials: The second of a six-part guide on boosting personal effectiveness. Part I: How to use...