Came across the amazing video which explains how a problem can be solved easily.
Presence of mind and thinking of of the box solves pretty hard problems too.
In the video a lady puts a box on the roller and due to its weight, it keeps rolling while it should have travelled on the roller upside. She was unable to understand what to do.
Here colleague comes and tries to push, but it keeps on rolling. She also was unable understand.
Then the guy comes and puts one more box which makes the box stable and the problem solved.
Check out the video below which I saw on Facebook.