1 - 4: Dunno.
5: Gaslamp District downtown is good for drinks and nightlife. Pacific Beach is fine if you're in your 20's, but probably not if you're older. Find a Mexican restaurant that has a name *insert first name here*-bertos and get some carne asada burritos or fries.
6: Take the 5 to LA and then transfer over to the 101 and stick to the 1/101 all the way up. If you see something interesting (you will) just find a place to stop and check it out. Tons of stuff to see. Big Sur especially comes to mind.
7: Alcatraz is pretty cool, but if I could only go see one thing in the SF area it'd be the Muir Woods (just take the Golden Gate bridge and head north for a bit). San Francisco itself is an attraction, so you could also just spend time wandering around. Just watch out for shit on the ground in certain areas. I'm pretty sure there's an app for that.