Misc: Which of the seven hills of Rome gives its name to the Italian presidential palace?

Questions

"I am the very model of a modern major general"?

"See me stand I can hardly walk, I believe you can make me..."?

"Knock Me Down," "Higher Ground," "Magic Johnson".?

Name the Russian band with the single "Bang" and a cover of "My Generation"?

"You mean the world to me,.. you are my everything.."?