Yes, he is. His old business partner, Gene Siskel (Siskel and Ebert) died in 1999.
No he died in 1988.
no.
If you mean the poet Roger McGough that was in the group Scaffold, then yes at the time of writing he is still alive.
No. He passed away on February 23, 2003. RIP Fred Rogers :( He was from Mr. Rogers' neighborhood, on pbskids.org