How many cans can a canner can, if a canner can can cans?
A canner can can as many cans as a canner can, if a canner can can cans.


You've no need to light a night-light
On a light night like tonight,
For a night-light's light's a slight light,
And tonight's a night that's light.
When a night's light, like tonight's light,
It is really not quite right
To light night-lights with their slight lights
On a light night like tonight.

http://www.indianchild.com/tongue_twisters.htm
Visited on 19 January 2011 on 11p.m.

A flea and fly in a flue,
Were imprisoned so what could they do?
Said the flea let us fly.
Said the fly let us flee.
So they flew through a flaw in the flue.

http://www.alphadictionary.com/fun/tongue-twisters/english_tongue_twisters.html
Visited on 19 January 2011 on 11p.m.