you can eat solid foods if you can handle it. I had all 4 surgically removed at once. The first day, i only ate chicken noodle soup, because my jaws were super sore. But, anything your jaw can handle, you can eat. Stay away from straws though. Dry socket sucks!
It kind of depends on your threshold to pain. Like a friend of mine had his wisdom teeth removed and he was eating solid food that day. But I had one tooth removed and I couldn't eat solid food for a day or two. So it depends, but most likely not.
Well i have a high pain threshold, and i really like it when dentist work on my teeth i think it feels good