Reinstall flash as a stupid sensible answer
You haven't muted your web browser have you?
How do you do that? (or, more helpfully, how do you undo that?)
Oh, and my google doesn't work. When I click on a link it goes to some random website and not the one it should.
Sounds like your hosts file might have been hacked.
run a fullscan with malware bytes
http://majorgeeks.com/download.php?det=5756
(take system restore off then scan..re-enable after)