Friday Trivia Quiz #5: Spiderman

1. Who was the first villain to return for a second battle against Spidey?

2. Name the first villain(s) to appear in three different stories (not issues) in Spiderman.

3. It is well-known that Dr Doom was the first crossover villain in Spiderman. What team was the second?

4. Uncle Ben Parker was the first character to die in a Spiderman story. Who was the second?

5. What guest character appeared the most often in the first 20 issues of Spiderman?