A difficult problem, please enter with IQ120 or above!!

1.Xiao Ming said: "If I don't know, Xiao Qiang definitely doesn't know."

The subtext of this sentence is actually: "I should have guessed correctly, if I guessed wrong, Xiaoqiang definitely didn't know". But Xiao Ming is still not sure whether he guessed correctly or not, and Xiao Qiang needs to confirm it.

What value does m take to make Xiao Ming say that? Obviously, 6 and 12 are not advisable, if M is 6 or 12, N may be 2 or 7 - Xiaoqiang can know Mr. Zhang's birthday with a number of 2 or 7. m can only be 3 or 9, and n can only be taken in .

If m is 3, n can take three values, and the result is "If Xiao Ming does not know, Xiao Qiang may know (3 4, 3 8), or may not know (3 5)." In this case, Xiao Ming's statement that "if I don't know, Xiao Qiang definitely doesn't know" is not in line with the facts, and Xiao Ming is not enough to say so confidently.

If m is 9, then Ming knows that n can only be 1 or 5. At this time, Xiao Ming's guess is n=1, and whether n is 1 or not, Xiao Ming is not sure, if n is not 1 but 5, then Xiao Ming said "If I don't know, Xiao Qiang definitely doesn't know". At this point, in fact, Xiao Ming already knows, and there are only two situations, just waiting for Xiao Qiang to confirm whether n is 5.

2.Xiaoqiang said: "I didn't know it at first, but now I know."

Xiaoqiang said, "I didn't know about it originally", verifying that n is indeed not 2 or 7; At the same time, Xiaoqiang also knew that "M is not 6 or 12, M only has 3 and 9 to be preferable". If n is 5, then Xiaoqiang should say "I didn't know it originally, but I still don't know it now". According to the inference of the first section, n = 1, so Xiaoqiang can say "I didn't know it at first, but now I know".

3.Xiao Ming said: "Then I know too".

Xiao Ming is waiting for Xiao Qiang's words, no matter what Xiao Qiang does, Xiao Ming will know the correct answer. If Xiao Qiang says "I still don't know", then Xiao Ming can still know that "only n=5 will make Xiao Qiang at a loss", so the answer is September 5; If Xiaoqiang says "I know", then it must be September 1.

In fact, from beginning to end, Xiao Ming understood, he only needed Xiao Qiang to say something to verify his guess, for Xiao Ming, it was a non-A or B multiple-choice question. Therefore, according to the story development clue of the topic itself, Xiao Ming's third sentence can be omitted, but many people use this condition when deriving - that is a bit like doing a math problem.

1.The first thing that can be excluded is June and December, because Xiao Ming is sure that it can't be December 2 or June 7, otherwise Xiao Qiang will know (if he knows that it is by virtue of 2 or 7), so June and December are excluded;

The rest are: March 4th, March 5th, March 8th.

September 1 September 5.

2.Except for June and December, Xiaoqiang immediately confirmed the results, because there are two uncertainties on March 5 and September 5, and the 5th can be ruled out;

The rest are: March 4 and March 8.

September 1 3In the end, Xiao Ming also knew, if it was March, he wouldn't know what day it was. It can be determined that it is September 1.

1. .I don't know what that says, but the answer is 10 yuan, 30 yuan.

The boss also 5 yuan 25 yuan.

Service collection 2 yuan 23 yuan.

All three of them spent 10 yuan, the waiter hid 2 yuan, the answer should be 28 yuan, and then they didn't have 3 yuan, which was not less at all.

8.Ask the big islanders if the small islanders will always only tell the truth or lies, and if he is telling a lie, then it must be No, if he is telling the truth, the answer is that at this time, you can know whether the middle islander is telling the truth or not.

For example, the treasure is in the mountains.

If the big islanders are telling the truth, the middle islanders are the treasures on the mountain, and if the big islanders are false, the middle islanders will be at the bottom of the mountains, then the treasure is on the mountains, and to be honest, I think 2l.

Because if he is telling the truth, he will raise the hand of the representative of the yes and he will also raise the hand of the representative of the yes if he is telling a lie.

The raised hand represents the answer, that is, the hand raised at the time of the true or false answer is different.

I can't answer.

I hope to get an explanation from the expert.

So reply to the post. so that they can be retrieved later.

The algorithm of the first question is wrong, it should be (10+10+10)-(25+5)=0, not 27+2=29

The second question is that the people who sell green onions don't know how to settle accounts, and the people who buy green onions are more shrewd. 50 pounds, 50 pounds, or 7 cents and 3 cents for sale? Selling like this will definitely lose money.

The third question is 5 days and 4 nights.

The fourth question is 15 peaches, 1 yuan 10 peaches, 10 peaches, take 2 peaches for one peach = 5 peaches.

Question 5, take out 4 4 scales, 2 possibilities (special balls are in these 8, or in 4).

If you take out 2 2 scales in 8, now the special ball is in 4 4, and 1 1 scales in 4 will know the weight.

The first and second questions are both mathematical formulas. 10x3-5+3=28 3x9+2=29 10-9=1 The formula is correct. It's that the starting base is different, one is 10 and the other is 9

The second question is very simple. Because the weight of the green onions is different, the first question will not be, and I will tell you after looking at the high people.

The third question, well, it should be 7, hehe, I don't know if it's right, give me a lot of advice.

The fourth question is also very simple, but I want to ask, can I borrow a peach pit from the store, if so, then you can borrow a peach pit first, exchange for one, and then return it after eating.

First of all, look at the confession Article 1: A is not an accomplice, which can be the second jump that B C says: B is not **, that is to say, A C says.

Article 3: D participated in the case, that is to say, it is possible for A B C to say first, and B C said the first sentence, indicating that someone in B C participated in the case!

A C said the second sentence to indicate that A C had participated in the case.

A b c said the third sentence, indicating that a b c participated in the case and looked at the characters who did not appear in the confession with false words and counter-reasoning! It's that C is innocent!

So A is **, B is an accomplice, and C is irrelevant, but he knows about this case.

A is **, because A is not an accomplice, and this is said by B, C; B is not **, it was A and C who said it, D participated in the case, ABC said it, according to this, C said all three articles, then C is the person who witnessed the case and has nothing to do with the case, and is a witness. It's easy to push A to be ** and B to be complicit. Hope that your questions are answered.

Similarly, 9+3+2=14

So the number in parentheses is 14+11=25