Because people are always nostalgic, they pay for it. The first homophonic guess of butterfly dance among flowers is also the number 9.
The answer to lifting the spoon is also 9. The answer to the 36 plan is also 9. Ten can be a plus sign, and three plus six can be 9. Riddles mainly refer to the innuendo of things or words for people to guess, and can also be extended to things with mysteries. The riddle originated from the ancient folk in China, and it has evolved for thousands of years. It is a cultural product created by the collective wisdom of the ancient working people in China.