Depending on where you wanna cut.
This is what I did:
X-ray to see how many I have (4 of them), 3 vertical, the resi
horizontal.
Doctor advice I take out 1 side 1st, so you can eat with the other
side. You can opt for all removal but you will be admitted to the
hospital for a day for precaution.
taking out 1 side = 2 wisdom teeth. Top 1 is cheap, bottom 1 is
more expensive coz its surgery.
After taken out, depending on the size of da wisdom tooth, may
subject to sewing to keep the wound small. 1st 8 hrs or so, you
will have some discomfort in the bleeding and stinging pain, after
dat is ok liao. Porridge is a common dietry food for the next 4 - 5
days. After can try taking solid food.
Side note: if opt for 1 or 2 extractions, you will have 2 - 4
injections into the gum. That in my opinion is the most painful
experience of all. Maybe I dislike syringe insertion. 
