30 Credits!!

I am giving away 30 credits for the first person to solve my riddles/questions.


What is Blue, Black, Purple, and pisses off parents?

What is rule 4 under posting etiquette?

What was the ending song from Rick and Morty season 2?

What starts with F and ends with UCK? (It's not fuck)

Finally, who is my waifu?


Contest ends when someone guesses all of them correctly. I will announce the winner of the contest when someone guesses it right.