Double it when you meet a store, and have a drink when you see flowers.

I met shops and flowers three times and drank all the wine in the pot.

How much wine is there in the hip flask?

Can you establish an equation to find out how many barrels there are in the hip flask?

Solution: suppose there is an x barrel of wine, then,

2[2(2X- 1)- 1]- 1 = 0

The solution is X=7/8 (barrel

There is a strange island where there are two kinds of people, those who tell the truth and those who lie. Every word of a truthful person is true, and every word of a liar is a lie.

One day, when Wang Daming visited the island, he met three residents, A, B and C, and asked them curiously whether they were liars or honest people.

A said, "Both B and C are liars."

B said, "I never lie."

C said, "B is a liar."

Wang Daming thought about it, and then he found that some of the three people in his dream were lying, you know?

Solution:

1. If A is telling the truth, then B and C are liars, and C is telling the truth. So what A said is a lie.

2.A tells a lie, and then B and C are the people who tell the truth, but the result is that B tells the truth and C tells the lie.

So A tells a lie, B tells the truth, and C tells a lie.

Mr. Huang, Mr. Lan and Mr. Bai have lunch together. One is wearing a yellow tie, one is wearing a blue tie, and the other is wearing a white collar.

"Have you noticed," said the gentleman in the blue tie, "that although the color of our tie happens to be the surname of three of us, none of us has the same color as his own surname?"

"ah! You are absolutely right! " Mr. Huang sighed. Excuse me, what color are the ties of these three gentlemen?

Mr. Huang is wearing a white collar.

Mr. Bai is wearing a blue tie.

Mr. Lan is wearing a yellow tie.

Mr Huang Can should not wear a yellow tie, because then his tie will be the same color as his last name. He can't wear a blue tie either, because this color tie has been put on by the gentleman who asked him questions. So Mr. Huang must be wearing a white collar.

In this way, the remaining blue tie and yellow tie were tied by Mr. Bai and Mr. Lan respectively.

Xiao Ming and both are students of Teacher Zhang. Teacher Zhang's birthday is M, N, and both of them know that Teacher Zhang's birthday is one of the following 10 groups. Teacher Zhang tells Xiaoming the value of m and the value of Xiao Yong n. Teacher Zhang asked them if they knew when his birthday was.

March 4th March 5th March 8th June 4th June 7th.

September1September 5th 65438+February1February 2nd 65438+February 8th.

Xiao Ming said: If I don't know, Xiao Yong certainly doesn't know.

Xiao Yong said: I didn't know at first, but now I know.

Xiao Ming said: Oh, I know that, too.

Please infer when teacher Zhang's birthday is from the above conversation.

The answer is September 1.