What cool or useful skills can be learned in five minutes?

Write Faster, like you can write whole words in just a tiny pen stroke

Look at this letter, it's not the doing of a 2 year old kid…Its Shorthand Writing

A type of skill used commonly in the 19s in a profession where you have to take note of a lot of things at the speaking speed of the other person.

This skill has unfortunately been kind of endangered in today's world due to being replaced by the feature of digitally recording the meeting or speech.

Also we, the kids don't wanna learn something new just because we are lazy and want easier paths.

I could be a very nice skill for the students to write long notes in short period of time if you learn to use it in a smart manner.

Byeeeeeeeeeeee… Aarav Sharma

Edit: I know my answer doesn't befits the temperament of the question but it's something I wanted to share.