What are the brain teasers for products with one production date and one effective date?

A product whose production date and effective date are both one day is a newspaper.

Brain broadly refers to thinking and thinking. A sharp turn refers to driving to another route when there is an obstacle in front that prevents the car from driving in a straight line. Usually, under special circumstances, it is necessary to leave the customary route quickly and take another route. Brainstorming means that when thinking encounters special obstacles, you should quickly leave the habit of thinking and think about the problem from other aspects. Generally speaking, it refers to some intellectual questions that cannot be answered by the usual way of thinking.

Brainstorming originated in ancient India. Brainstorming is a series of complete comic jokes published by the culture of the times on 1989 12.06, which changed from the comic question on the previous page to the unexpected answer after flipping through it. At that time, there was a social craze in Taiwan Province Province, and all the streets and alleys were asking each other brain teasers, which evolved into a pattern of cold jokes and was later introduced to Chinese mainland.

An example of a brain teaser

1, four people were reported playing mahjong, and the police came to arrest people. Why did they bring five people (people who didn't bring the report)?

Answer: Because four people are playing a mahjong.

2. What line does the monkey dislike?

Answer: parallel lines! Because there is no intersection (banana).

If there is a car, the driver is a prince and the passenger is a princess, whose car is it?

Answer: Yes, if, because if there is a car.

4. A man and a woman went to the seaside to tell jokes, and they all died. Why?

Answer: They drowned because of the tsunami (the sea laughs).

5. Play an idiom with a blue gun and a blue knife.

Answer: invulnerability (blue).