71. Weighing can
Delivery Ai A, a food company, sent 10 boxes of pineapples to a food company. Each can weight is 800 grams, 20 per box. Just after he sent the goods, when he returned to the factory, he received a call from the factory. Delivery members send this box to the factory for replacement. But how do you find it from this box? The most needed is of course a scales, but there is no hand.
At this moment, he suddenly found that there was a automatic weighing body next to the road, which is to weigh a weight of 1 yuan. There is a 1 yuan coin in his pocket. Of course, you can only be able to once. So how should he make full use of this only one chance to find the box that does not meet the specifications?
72. Pay according to labor
There is a farm master, hired two temporary workers to help the wheat. One of them is called Tom, which is a cultivated land, but he will not sow; and another name is Nick, he is not good at cultivated land, but he is a good hand of sowing. This farmer decided to speculate ten hectares of wheat, allowing them to have half, so Tom starts cultivated land from east, and Nick began cultivated land from the West. Tomo, Tom, as long as it takes for more than twenty minutes, but Nick needs more than 40 minutes, but the speed of Nick sowing is three times faster than Tom.
After they were seeded, the farmer was given him a total of one hundred yuan according to their workload. Excuse me: How should they do this work is the most reasonable?
73. Age of the four brothers
A family has 4 brothers, and 4 ages are taken 14. So, how old is their individual age? Of course, age should be an integer.
74. The extent of love
Among a rural school, a male mathematics teacher who just graduated was very fortunate to get the favor of two female teachers A and B. S full of head numbers, in the case of choosing from both, he had to say that these two female teachers said, "I hope you use numbers or mathematical formulas to express your extent to me."
a said, "I am more than one hundred times," I love you. "
B said, "A. The feelings for you have no feelings of me. Compared with A, I love you one thousand times."
After listening to the deep words, I don't know why mathematics teacher S is frustrated. "This is not to say, do you have two don't love me at all?" What is going on? "What is going on?" What is going on? "
75. Climbing stairs
A gentleman is going to do things on the 8th floor of the 10th floor, can't catch up with the power outage, the elevator can't use it, he can only walk on the floor. If he climbed from the first floor to 48 seconds, then how many seconds need to go to the 8th floor with the same speed?
76. Air attendant dispensing items
On a plane, the middle is a road, both sides are seats, each row of three. Two flight attendants A and B are responsible for each of the passengers to allocate travel items. At the beginning, A was issued to the right passengers on the right. At this time, B came over to her, and the left should be responsible for being. So A reached the left and started, B then gave the remaining passengers on the right, and then helped a 15 copies, and finally the two ended at the same time.
Excuse me: Who is A and B send more? How many copies have been made? In production, a piece of iron chain is required. Only five iron chains of only three iron rings in the warehouse are only required for the length of the five truncated chains.
Q: How to connect these five three iron rings in the case of only three iron ring?
77. Clearing aircraft ticket
The travel agency has just reserves a plane ticket for three passengers. These three passengers are Dutch Cole, Canadian Botto and British Danpi. They go to the Netherlands, one go to Canada, one go to the UK. According to Koer, don't plan to go to the Netherlands, Dan Si is not going to go to the UK, Bero does not go to Canada, nor to the UK. Q: Who should these three aircraft tickets should be their?
78. White Hat and Black Hat
The teacher let six students sit around and let a student sit in the center and take out seven hat, four top white, three black. Then I blindfolded the eyes of seven students and put a hat sitting in the central students, and only unwind the six students sitting on the circle. At this time, because of the blocking of the students sitting in the center, everyone can only see five people's hats. The teacher said: "Now, you guess your head color wearing the hat you wear." Everyone thoughtfully thought of a big one. Finally, sitting in the center, the student who was blindfolded and said: "I guess it."
Q: What is the color of the blindfolded student with the blindfolded student? How did he guess?
79. Urgent Sheng Zhi
There is a farmer picking a pair of bamboo baskets, caught up to buy something. When he came to a wooden bridge, he came to a child. He wanted to return to let the child first cross the bridge, but take a look, and there was a child. At the end of the two difficulties, the peasants urgently have a wisdom, think of a clever approach, so that everyone has passed the wooden bridge smoothly, and no one in the three people will return one step.
Q: What method is farmers use?
80. Skating room
A certain geological exploration team has 12 players, they live in 12 rooms in a building. Due to the work relationship, the information cannot be concentrated, and there are information on others need to check. On this day, 12 players have to go out. Before leaving, the captain said to everyone: "During the work of the work, it is impossible to come back together. If there is a player back to check the information is difficult. Now we have two keys to open their own locks, only Quickly take one of the keys, the rest is not allowed to hang on the door, because not safe, every room must be more critical, everyone wants to think, how can I get anyone to open 12 Room? "
Q: If you are one of a player, can you come up with a way?
81. Daughter's fault
My father called her daughter, I want to buy some daily necessities for myself, and tell her that the money is placed on an envelope on the desk. The daughter found the envelope and saw 98 above. I thought that I had 98 yuan in the envelope, I took the money out, and the number was not put into the bag. In the store, she bought 90 yuan, and she found not only 8 yuan left, but it was 4 yuan. Going home, she told the father and suspected that her father went wrong with the money. The father smiled and said that he did not have a number of mistakes, failed to be on his daughter.
Q: Where is the daughter wrong?
82. Looking for coins
3 Japanese kids closed, they took out all the money in the pocket and see how much money. The result is 320 yen. Two of these coins are 100 yen, two are 50 yen, two are 10 yen. There is no different in the coins of each child. Moreover, children who have no 100 yen coins have no 10 yen coins, and children who have no 50 yen coins have no coins of 100 yen. Can you figure out what kind of hard coins have these three Japanese children?
83. Sleeping and waking up
I would like to ask: From the moment you have born, how many times you slept and wake? How many times?
84. What book is the most problem?
85. Why don't you eat back? 86. What is "father" will not touch, call "Dad", but will you encounter twice?
87. Farmers support 10 cows, only 19 angles, why?
88. What is the thing that doesn't feel strong and comfortable?
89. Tony always likes the alarm clock in the home, why do the mother always let the father who will not repair the watch for the repair?
90. Dave walking from the foot, this is why?
91. What should I do when I don't care about the maturity?
92. What is the product date and effective date?
93. The clock knocked on thirteen, what should I do now?
11. How to write zero in the Roman number?
94. There is a twin brother, the brother's butt is black, and the younger brother did not. But even if you wear the same costumes for twins, you can still know who is your brother, who is your brother. Who is it?
95. There are household regulations, state-owned national regulations, there is a regulation in the zoo?
96. Do you have a man in first?
15. Who is lucky every day?
97. Mary said all day, but she said the least, why?
98. David took the match to the kitchen, this has a gas stove and a alcohol lamp, if he wants to boil water, ask: What should he ignite first?
99. The teacher said that he can still regenerate two paragraphs, and the teacher of Xishen is done, but why?
100. Which tire does not turn when the car is turned right?
