if it's jus sitting there pick it up with scissors, it's the only way it won't fire. then place it in your fuse box in your car, Problem solved
No, you should keep and reuse the old sink.
If you have ordered questions into bullet points then each question (or bullet point) should end with a question mark.
Yes you should do.
you put baking soda and smosh it and drop it into the water and it should sink
stop placing the cigarettes on the sink
This method worked quite well on our sink. Put baking soda around the sink hole (it should clump up and slightly go down the drain). Then add a bit of white vinegar and flush around the sink. It should bubble and your sink should be unclogged. If it didn't work you can repeat till it's unclogged.
You should check your sink pipes if there is something clogging the pipes and creating that pressure. If you are unable to locate the problems, you should contact a plumber to inspect your sink.
A bullet to the head.
Chemicals
It depends on the amount and how tightly packed it is, but it usually should sink(natural)
Take the pan to the sink.
I would visit the website Sink World because it is a site dedicated to sinks. You should easily find a commercial grade sink.