Here's a simple question for anyone who has been on Facebook for some time now.

How do you create a photo collage of your Facebook Friends (as shown above) without using any of the available Facebook Apps or third-party tools.

And no matter how large your Facebook friends list is, the whole process should not take more than 2 seconds.

Hint: This secret feature is available right inside Facebook though Mark Zuckerberg and his team never told us about it.

Answer: Once you finish exploring all the options in Facebook, read the solution.