Tongue Twister, Mind Thinker

• If you understand, say "understand". If you don't understand, say "don't understand". But if you understand   and say "don't understand", how do i understand? Understand !
• I wish to wish the wish that you wish, but if you wish the witch wishes, i won't wish the wish that you wish. A sailor went to the sea to see, what he could see. And all he could see was sea, sea, sea.
• Purple paper people, purple paper people, purple paper people. Weirdo.
• If two witches were watching two witches, which witch would watch which watch ? thought a thought. But the thought i thought wasn't the thought. I thought i thought. If the thought i thought i thought had been the thought i thought, i wouldn't have thought so much.
• Mr Inside went over to see Mr Outside. Mr Inside stood outside and called to Mr Outside inside. Mr Outside answered Mr Inside from inside and told Mr Inside to come inside. Mr Inside says 'NO' and told Mr Outside to come outside. Mr Outside and Mr Inside argued from the inside and outside about going outside or coming inside. Finally, Mr Outside coaxed Mr Inside to come inside, then both Mr Outside and Mr Inside went outside to the riverside.
• The owner of the inside Inn was his inside outside his inside Inn.
• If one doctor doctors another doctor, does the doctor who doctors the doctor doctors the doctor the way the doctor he is doctoring doctors ?
• When a doctor calls another doctor to doctor the doctor does the doctor doctoring the doctor doctors the doctor in his own way or the doctor doctoring the doctors the doctor in the doctor's way ?