Tongue-Twisters

Tongue-Twisters
What are they?
A tongue-twister is a sequence of words that is difficult to pronounce quickly.
Don't feel bad if you have difficultly in saying some of the tongue-twisters below, even native English speakers find them difficult.
Our selection
Try to say them quickly and correctly!
A box of biscuits, a batch of mixed biscuits.
A noisy noise annoys an oyster.
A proper copper coffee pot.
A Tudor who tooted a flutetried to tutor two tooters to toot.Said the two to their tutor,"Is it harder to tootor to tutor two tooters to toot?"
Around the rugged rocks the ragged rascals ran.
Cows graze in groves on grass which grows in grooves in groves.
Fred fed Ted bread, and Ted fed Fred bread.
How much wood would a woodchuck chuckif a woodchuck could chuck wood?He would chuck, he would, as much as he could,and chuck as much wood as a woodchuck wouldif a woodchuck could chuck wood.
I thought a thought.But the thought I thought wasn't the thoughtI thought I thought.
Irish wristwatch.
Lesser leather never weathered wetter weather better.
Long legged ladies last longer.
Peter Piper picked a peck of pickled pepper.Did Peter Piper pick a peck of pickled pepper?If Peter Piper picked a peck of pickled pepper,Where's the peck of pickled pepper Peter Piper picked?
Pink lorry, yellow lorry.
Red leather, yellow leather, red leather, yellow leather.
She sells sea-shells on the sea-shore.
Six short slow shepherds.
Six sick slick slim sycamore saplings.
Sly Sam slurps Sally's soup.
Suddenly swerving, seven small swansSwam silently southward,Seeing six swift sailboatsSailing sedately seaward.
Swan swam over the pond,Swim swan swim!Swan swam back again -Well swum swan!
The sixth sick Sheik's sixth sheep is sick.
Three grey geese in green fields grazing.
Unique New York.
We surely shall see the sun shine soon.
Which wristwatches are Swiss wristwatches?

Link: http://www.wordpower.ws/tongue-twisters.html