iOS 8.0.2 on iPhone 6 plenty of bugs.

I've different Bugs since using iOS 8.

if i select an text field and begin to type the first word ever gets a double letter e.g. "Iif" instead of "If".

in safari sometimes appears a white square and in that area the toch gestures don't work. Cannot scroll or pinch. Sometimes I also cannot close or select tabs in overview.

IF the phone is standby and push the home button to wake up the camera button on lock screen doesn't work and the quick settings at from bottom doesn't appear.

DOes anybody have have the same issues?