Is anyone else doing this competition?

I'm stuck on three and any help would be appreciated.

Round 1: Q13. Which oddball US singer this year declared that he had an "active masturbation life" in NME?

Round 3: Nachos Geez III is an anagram of which "wintry artist"?

Round 4: Need answer for picture Y. (You need the magazine to see these ones)

Cheers

Paul