9 of the toughest job interview questions you'll hear at companies like Disney, Twitter, and Facebook

Top companies seem to love tough interview questions.

Flub one tricky query, and you could end up derailing your whole job interview.

That's why it's important to be prepared.

Fortunately, there's Glassdoor. The job site hosts reviews and ratings for 640,000 companies in 190 countries.

Glassdoor recently analyzed all of the approved interview questions that US-based job candidates shared on its site during the last 12 months and picked out the ones that had been rated "very difficult" or "difficult" by community members.

Visit Glassdoor for a complete list of tough questions, which appear in no particular order.

Here are some of the potentially pitfall-inducing questions: