stupid soccer offside argument

[Victor]

player is in offside position. the other team plays the ball back and he gains posession.

the other team played the ball by

a)miskick/shank
b)intentional passback (ie the ball was intended for the goalie but he stole it before the keeper got to it)
c)deflection (ie his own team played the ball initially but it deflected back to him off his opponents)

which situation(s) is he offside?