Chen Liyan went to apply for a job. The manager asked him, "How much salary do you ask for a year?" With my working ability, my annual salary should be 18000 yuan. "Chen Liyan said. The manager stared at him for a while, then said, "Is it worth 18 thousand a year?" "Are you clear? There are only 365 days in a year. If you sleep eight hours a day, a year is 122 days. 365 days minus 12 1 day. Furthermore, you have eight hours of rest and entertainment besides going to work in the mountains every day, which means 122 days a year. Then subtract 12 1 day from 243 days, leaving only 12 1 day. But there are 52 weeks in a week, and there is no work on Sundays, so 12 1 day subtracts 52 days to leave 69 days. At the same time, every Saturday afternoon is a holiday, so there are 26 days in a year, so 69 days MINUS 26 days leaves 43 days. Minus the two-week annual leave given by the company, there are only 29 days left. Don't forget to have an hour's lunch every day, which means 15 days a year. 29 MINUS 15, leaving 14 days. Excluding public holidays such as the new calendar year, the old calendar year, Mid-Autumn Festival, Easter, Thanksgiving, Christmas *** 10, that is to say, I only work four days a year. Do you think it's worth 18 thousand yuan? The professor said ... one day, a professor suddenly stopped teaching and told everyone earnestly: if the students sitting in the middle can be as quiet as the students sitting in the back playing cards, then the students sleeping in front will not be disturbed. Physicist, biologist, mathematician A mathematician, biologist, physicist, sitting on the open-air coffee table, leisurely looked at the people coming and going in the shop across the street. First, they saw two people walk into the shop. After a while, they found three people coming out. Three friends expressed their views on their major: physicist: This proves the uncertainty principle. Biologists: These people reproduce themselves. Mathematician: If one more person enters this shop now, there will be no one inside. Counting my son, he is three years old and knows how to count from one to ten, and five is bigger than one. I also look for opportunities to teach him at any time and ask him which is bigger, the dog or the kitten. Once, I took a chocolate in my left hand and two chocolates in my right hand and asked him, "Which side is more?" " "。 My son didn't answer, so I continued to ask patiently. The son burst into tears and said, "There are few faces!" " "The Use of Logic A student asked Einstein about the use of logic. Einstein asked him, "Two people climbed out of the chimney. One had soot on his face and the other was clean. Which one do you think should take a bath? " "The dirty one, of course." Students sayno. The dirty side sees the other side clean and thinks it won't be dirty. Where will he take a bath? "