A mathematician and his best friend, an engineer, attend a public lecture on geometry in thirteen-dimensional space. "How did you like it?" the mathematician wants to know after the talk. "My head's spinning," the engineer confesses. "How can you develop any intuition for thirteen-dimensional space?" "Well, it's not even difficult. All I do is visualize the situation in n-dimensional space and then set n = 13."

Once you go asian you never miss an equation.

The teacher asked little Johnny, “What’s two and two?”. He counted 1-2-3-4 on his fingers and said, “Four, teacher?”. She said, ” Yes, that’s right, but you counted on your fingers. Put your hands behind behind your back and tell me what’s three and three”. He put his hands behind his back, fumbled around, and answered, “Six, teacher?”. She said, “Yes, that’s right, but you’re still counting on your fingers. Put your hands in your pockets and tell me what’s five and five”. He put his hands in his pockets, fumbled around, and replied, “Eleven, teacher?”.

A lawyer, an engineer and a mathematician were called in for a test. The engineer went in first and was asked, "What is 2+2?" The engineer thought awhile and finally answered, "4." Then the mathemetician was called in and was asked the same question. With little thought he replied, "4.0" Then the lawyer was called in, and was asked the same question. The lawyer answered even quicker than the mathematician, "What do you want it to be?"

Equation Men = eat + sleep + earn money Donkeys = eat + sleep Therefore, Men = Donkeys + earn money Therefore, Men - earn money = Donkeys In other words, Men that don't earn money = Donkeys