On a scale of 1 to 10, how weird are you?

That's the question Zappos' CEO asks potential candidates. Would you include any of these other unusual yet surprisingly insightful suggestions when conducting your interviews?

While most HR professionals have abandoned some of the age-old and more clichéd interview questions like “Tell me your biggest weakness,” others are struggling to find something new that actually offers insight into what the candidates are really like.

“If you were a slice of pizza, what flavour would you be?” may be out-of-the-box but it doesn’t tell the employer too much about what to expect from the potential employee – unless they say they don’t like pizza and then you’ll know they’re a pathological liar.

Luckily, a collection of the world’s most successful business leaders have shared their favourite interview questions with Business Insider and, as expected, they’re a wonderful array of original yet insightful suggestions.

Here are some of HRD’s favourites:

Richard Branson: What didn’t you get a chance to include on your résumé?

Unsurprisingly, self-confessed eccentric and multi-billionaire Branson says he isn’t a fan of the traditional interview.

“Obviously a good CV is important, but if you were going to hire by what they say about themselves on paper, you wouldn't need to waste time on an interview,” Branson explains.

Tony Hsieh: On a scale of 1 to 10, how weird are you?

American internet entrepreneur Hsieh is the CEO of online shoe and clothing shop Zappos – the company claims one of its core values is to “create fun and a little weirdness,” so the question makes perfect sense.

“[If] you're a one, you probably are a little bit too straight-laced for the Zappos culture,” he said. “If you're a 10, you might be too psychotic for us.”

Hannah Paramore: How old were you when you had your first paying job?

Nashville-based Paramore is the president of her namesake advertising agency, Paramore – she says the question offers insight into how ingrained a potential employee’s work ethic really is.

“I’m looking for how deeply instilled their work ethic and independence are versus entitlement,” she said.

“If they worked part-time in high school and college because they needed to, especially in jobs that were just hard work, that shows a huge level of personal responsibility,” she added. “I love people who have to patch success together from a number of different angles.”

Peter Thiel: Tell me something that’s true that almost nobody agrees with you on

“It sort of tests for originality of thinking, and to some extent, it tests for your courage in speaking up in a difficult interview context,” explains PayPal cofounder Thiel.
 
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