Tongue twisters
How many tongue twisters do you know? I dare you to repeat this one aloud:
How much wood would a woodchuck chuck, if a woodchuck could chuck wood?
As much wood as a woodchuck would, if a woodchuck could chuck wood.
or an easier one:
Today's the day that they die
How much wood would a woodchuck chuck, if a woodchuck could chuck wood?
As much wood as a woodchuck would, if a woodchuck could chuck wood.
or an easier one:
Today's the day that they die

Risposte
...funny thread 
Not properly a tongue twister (let's remember that Erdős is to be pronounced with a final /-ø:ʃ/, as if it were written Erdösch in German, and English speakers have some difficulties with [ø], though), but I find this amusing:
A conjecture both deep and profound
is whether a circle is round.
But in a paper by Erdős,
written in Kurdish,
a counterexample is found.

Not properly a tongue twister (let's remember that Erdős is to be pronounced with a final /-ø:ʃ/, as if it were written Erdösch in German, and English speakers have some difficulties with [ø], though), but I find this amusing:
A conjecture both deep and profound
is whether a circle is round.
But in a paper by Erdős,
written in Kurdish,
a counterexample is found.
One-One was a race horse. Two-Two was one too. When one one won one race, Two-Two won one too.
"Pianoth":
Three Swedish switched witches watch three Swiss Swatch watch switches. Which Swedish switched witch watch which Swiss Swatch watch switch?
Questo con la pronuncia corretta inglese è difficile.
Mi si è srotolata la lingua

Rilancio

She sells seashells on the seashore. The shells she sells are seashells, I'm sure.
Three Swedish switched witches watch three Swiss Swatch watch switches. Which Swedish switched witch watch which Swiss Swatch watch switch?
Questo con la pronuncia corretta inglese è difficile.
Questo con la pronuncia corretta inglese è difficile.
"Luca":
How much wood would a woodchuck chuck, if a woodchuck could chuck wood?
As much wood as a woodchuck would, if a woodchuck could chuck wood.
It's crazy!
an other (I'm cheating...):
Thirty-three tridentines came into Trent, all thirty-three trotting.
(or dawdling
