Your life will be over in an instant
Objects which approach a black hole will get sucked into it.
The matter gets crushed as tiny as it can get.
They get destroyed. Their matter becomes part of the black hole.
Objects which approach a black hole will get sucked into it.
In that case, it will stay there.
it gets sucked up
It is sucked into the black hole to a point that is infinitely small.
Its called a Super Black-hole and scientists believe it is what holds all galaxies together.
That's not exactly what happens. What really happens is that they just absorb each other and become a bigger black hole.
Not sure what you mean by swim, as black holes are in space, but if one gets to close to a black hole they would inevitably "sucked" in and all time would basically stop with no hope of escape
Essentially, anything that gets too close to a black hole can be pulled into it. This includes (but not limited to) gasses, liquids, solids, and light.
Just the same as if normal matter falls in. The matter or antimatter will stay there, increasing the mass of the black hole (and making it more "hungry", i.e., making its gravity stronger).