Is your brain strong to answer this mind test?

To determine the strength of your brain and assess your cognitive abilities, I can provide a simple mind test. Here's a riddle to test your powers of logic and reasoning:

Riddle:

I fly without wings,

I cry without eyes,

I bring joy and pain,

A moment's gain,

Leaving nothing but emptiness.

What am I?

Answer:

The answer is "a fart."