How to I get Facebook notifications off?

[Ananas]

I keep getting on my timeline some random pictures from an app "21 questions." I played this like 2 years ago, and the pictures are pissing me off. How do I get the notifications from this app off, or even delete it?
I use an iPhone 5

[Daniel]

Go to Notifcations Not Sure if this Will Work on Mobile But Next to the Notifcation Click on the X and you Can Turn off Notifcations From App 21 Questions

To Delete the App you Have to Go to the App Center Find The App From your Apps List and From There you Can Delete it