Mushrooms were walking on the road and were hit by oranges. Mushrooms are furious: no eyes! Go to hell! Then the orange died. . . . Excuse me, why?

The answer to this riddle comes from a common language joke. In this joke, mushrooms use two adjectives for oranges, namely "no eyes" and "dead". In Chinese, "no vision" is a saying, meaning that someone is invisible or not smart enough, while "going to die" is a vulgar saying, indicating contempt or disgust for someone.

So the humor of this joke is that mushrooms use extremely strong and radical language to oranges, but oranges are unscathed. This is obviously an absurd logic, because even an inanimate object should not suddenly die because of an excessive statement.

Generally speaking, this riddle is a language joke, which relies on specific words and expressions in Chinese to produce humorous effects.