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Mathematical riddle
In a hurry, the collar is unbearable, and the number of people who go out for a long time is 7.

Being in a hurry means that time passes quickly, and the number 7 is short, which means that time passes quickly. At the same time, 7 is also a relatively neutral number, which can represent a transition and change, and is in line with the artistic conception of staying out for a long time to chat. So this number can be used as the answer.

Digital puzzle is an interesting topic in mathematics, which is generally regarded as an interesting intellectual problem to examine students' reasoning ability and divergent thinking. The formula formed by replacing numbers with letters or other symbols requires the questioner to restore the original formula. In ancient times, this game was called insect erosion calculation. Guessing is an intellectual game with a long history, which originated from the Eight Diagrams of the Book of Changes in China.

Guessing refers to guessing something or words within a specified range and according to certain rules through given suggestive words or images. In the form of solve riddles on the lanterns, China riddles are the most common, and the characteristics of Chinese characters and language are often used consciously to solve riddles.

Guessing is an interesting intellectual game, which is very popular with people. The ancients called solve riddles on the lanterns "shooting", which means guessing, and Gai means Gai. A person randomly selects an object to cover it, and the shooter guesses the object by divination, which is similar to a guessing game, but the puzzle is just a divination image obtained by everyone.

Mystery and structure

Lantern riddles have their own internal laws, and there are various combinations of riddles and riddles. There are direct hints, old puzzles that change with the conformal analysis of words, old puzzles with different interpretations of words, pictographic puzzles made according to fonts, etc.

A riddle has a riddle, and some also represent a riddle. The riddle is a hint, a code word, the riddle is the content to guess, and the riddle is to point out to you that this riddle has been adjusted by some means. Therefore, to guess a riddle, we must first clarify the words in the riddle, and then look at the riddle to find out what to guess; It should also be remembered that all the words in the riddle cannot be reproduced in the answer.