Q: Why was the math book sad
A: Because it had too many problems

One day a rich famous man went to buy a sport car from a dealership. The price of the car was $80000 and the man had only $79998 to pay.
The sales associate insisted that the price is firm and it has to be $80000.
The man came out of the store and looked around and saw a poor man begging for help. He went toward him and introduced himself and asked if he is kind enough to lend him $2. The poor man asked the reason. He replied that he is willing to buy a car. The poor man though for a moment and gave the man $4 and said: Please buy one for me too.

Q: How do you know that a man is about to say something smart?
A: It will always start with "she said..."

Q: Why was the math book sad
A: Because it had too many problems