What children's classic jokes are worth recommending?

Here are some children's classic jokes for your reference:

An ant saw an elephant on the road. The ant got into the soil, showing only one leg. When the companion saw it, he asked inexplicably, "How did your leg come out?" The ant said, "Shh! Don't make any noise, I will trip him! "

A rich man hired a teacher to teach his son to read. On the first day, the teacher taught me to write "123". What does "123" mean? The rich man said, "I have three sons." The next day, the teacher taught me to write "4567". What does "4567" mean? The rich man said, "I have four sons and five daughters." On the third day, the teacher taught me to write "eight, nine, eleven, two, three, four, five, six, twenty-seven, twenty-eight, twenty-nine, thirty-one", and the rich man said, "There are thirty-one sons and thirty-one women in my family."

One day, Xiaoming asked Xiaohong, "Do you know why pigs can fly?" Xiaohong said, "I don't know." Xiao Ming said, "Because they can't swim."