Question

take a water in glass now try to cut it what happens and why does it happens

Answer 1

nothing happens just our hand passes through the water as the water molecules get displaced because of their life low force of attraction between the molecules
This happens because the intermolecular space between the molecules is very much so they get displaced easily.

Answer 2

The water in the glass does not gets separated because the force of attraction between the particles of water is very low.