Hitting the first pitch? Yes that's probably a record. The record for the most home runs in a row is 4, but they weren't all first-pitch swings.
For a pitcher to be credited with a start they only have to throw the first pitch of the game.
you make pitch by hitting 2 objecs on something to make a different kind of pitch.
Rip Sewell is credited with inventing the eephus pitch.
Hit by pitch
They don't only pitch to left-handed batters; they pitch to both right and left-handed batters, the same way a right-handed pitcher pitches to both.
by hitting a ball round a pitch with a stick!
No, any type of interference is against the rule. It is similar to a pitcher unintentionally hitting a batter. As it is true that the interference does not have to be intentional, there are occasions where there might be "interference" that is not called as such. i.e If a batter takes a pitch and a runner is stealing a base, if the catcher throws the ball and hits the batter or his bat, while the batter is still standing in the box, this is not called interference