What is the hardest tongue twister to say?

There's no official "hardest" tongue twister, as what's difficult for one person might be easy for another. However, some are notoriously tricky, like:

* "She sells seashells by the seashore. The shells she sells are seashells, I'm sure. So if she sells seashells on the seashore, then I'm sure she sells seashore shells." This one is difficult due to the repetition of similar sounds and the long sentence structure.

* "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?" This one is tricky because of the alliteration, repetition, and the way the sentence structure changes.

* "The sixth sick sheik’s sixth sheep’s sick." This one is difficult because of the repetition of the "s" sound and the unusual word "sheik."

* "Betty Botter bought some butter, but the butter Betty Botter bought was bitter. So Betty Botter bought some better butter to make the bitter butter better." This one is tricky because of the alliteration and the repetition of "butter".

* "Red leather, yellow leather." This one is hard because the similar sounds are right next to each other, making them easy to mix up.

Ultimately, the hardest tongue twister for you will depend on your individual speech patterns and abilities. So have fun trying these out and see which ones trip you up the most!