Solved I M Not Touching The Home Key And It Acts Like I M Holding It Ipad Mini 2

Chosen Solution

Won’t stop opening and closing screen, or reducing the screen and also queuing Siri.

Sounds like there may be a problem with the Home Button. Has you iPad been repaired or have a cracked screen? You could always open it up but it is not a trivial repair. Check out this guide first to see if you’re comfortable doing this.