Yes, Korean Air has has many fatal crashes, both accidental and via terrorism. Since the 2000s, Korean Air has not had any fatal airplane crashes, however there have been crash landings.
No they have not.
No
No
Ryanair (ryanair.com) has never had a crash in it's history.
never
Titanic
yes
yes
No, it didn't.
The worst one I have ever heard of was 1955 Le Mans crash where the driver and 84 spectators were killed
Yes.