The favorite job interview questions of Elon Musk, Richard Branson, and 26 other highly successful executives

Rick Wilking/Reuters

Billionaire Richard Branson wants to know what you didn't include on your résumé.

Savvy executives know that interview questions like, "What's your biggest strength?" and, "What's your biggest weakness?" aren't as telling as they seem.

That's why they steer clear of these cliché queries and instead ask more meaningful ones.

Many of the most successful execs have their one favorite go-to question that reveals everything they need to know about a job candidate.

Here are 26 of them.