Tongue Twisters

Is it… Peter Piper Picked a Peck of Pickled Peppers, A Peck of Pickled Peppers Peter Piper Picked?
Or is it… If Peter Piper Picked a Peck of Pickled Peppers how many Pickled Peppers did Peter Piper Pick?

Which is the correct one? Which is the original? Notice, in the second one, the P's are broken up by the If and the how many, which would make it easier to pronounce the P's or rather break it up.

Is there and original way to say it? Or, are both correct?

Then I found English Tongue Twisters online:
#1
Peter Piper picked a peck of pickled peppers. A peck of pickled peppers Peter Piper picked.
If Peter Piper picked a peck of pickled peppers,Where's the peck of pickled peppers Peter Piper picked?

#249
Sally sells sea shells by the sea shore. But if Sally sells sea shells by the sea shore then where are the sea shells Sally sells?

SALLY? I thought it was Susie?

Oh nevermind…can you say Sushi Chef five times real fast?