Need NFL historical info.
 

There are a few stats/records I was wondering about just for general NFL info and I don't know where I would find the answers. Where would be the best place for them. Some of the questions are;

1. What is the longest 3rd and 4th down conversions ever? (I remember reading about Tarkenton converting a 4th and 28...)
2. What is the highest point spread ever? Ever covered? Ever where the dog won straight up? (Jets +16 SB3?)
3. What are the highest and lowest totals ever? (Bears/GB 30.5 made me think of this.)