Answer: Fools can’t eat it.

Analysis: Fool means a confused person, a person with simple thoughts. It is often used as a joke among acquaintances or as a name for a lover. It does not refer to food, so fools cannot eat it.

Similar to brain teasers:

1. What kind of rain can kill people?

Answer: A hail of bullets.

2. What animal stays up late every day?

Answer: Panda, look at its dark circles.

3. What kind of cloth can’t be cut to pieces?

Answer: Waterfall.

Extended information

How to solve brain teasers:

Brain teasers cannot be solved using conventional ideas, such as: What animal’s butt is lethal? More powerful than your mouth?

The answer is a wasp, because wasps are also called "wasps", "ants" or "wasps". There is a degenerated fallopian tube hidden at the tail end of the abdomen, which is the poisonous wasp stinger. When faced with attacks or unfriendly interference, they will attack in groups, which can cause allergic reactions and toxic reactions, and in severe cases, death.