Cyclists and traffic in Beijing

The video provides a brief introduction with a simple acknowledgment phrase.

What does the phrase 'No problem' imply in a conversation?

In what contexts might someone say 'No problem'?

How can the phrase 'No problem' affect the tone of a conversation?

What are some alternative phrases to 'No problem' that convey a similar meaning?

Can 'No problem' be considered a polite response? Why or why not?