The Original

I guy walks into a donut shop to buy donuts for the students in his class.
He is standing in line, perplexed, because he doesn't know what he should buy for his class of 20 students.
He peruses the overhead menu but still doesn't know what to get.
Then he sees the menu item 'Munchkins'.
The menu reads that they come 25 or 50 to a box.
He thinks to himself, what a great idea!
A box of 50 munchkins would be enough for my class.
Finally, he gets to the counter.
The cashier asks him, "Hello, what can I get for you?"
The guy replys, "I'll have a box of 50 Munchkins!"
The cashier responds, "All mixed up?"
The guy says, "No, I've already had plenty of time to decide!"

Mother Board

A mother board walks into a donut shop.
She says "I would like a chocolate donut with a cherry core".
The clerk says "No problem, That will be $1.75".
The mother board says "Oh no! I don't have any cache!".

Yo-yo Ma and Luciano Pavarotti

Yo-yo Ma and Luciano Pavarotti walk into a donut shop.
Yo-yo Ma says, "We would like three dozen donuts."
The clerk says, "That will be $15."
Yo-yo Ma says, "Oh no, I only have a tenor!"

Yoko Ono

Yoko Ono walks into a donut shop.
She asks the clerk for one chocolate donut.
The cashier says, "Would you like a bag?"
Yoko Ono says, "No, thanks."
The clerk says, "Are you sure? You could use it to carry a tune."