Answer: mung bean paste (mung bean shark), because the homonym of shark is sand, mung bean+sand = mung bean paste.

Brainstorming originated in ancient India. It means that when thinking encounters special obstacles, you should quickly leave the habit of thinking and think about the problem from other aspects. Now refers to some intellectual questions that can't be answered by the usual way of thinking. Brainstorming covers a wide range: educational, funny, mathematical, adult and so on. Brainstorming is a kind of entertainment and a popular word game.

Brainstorming skills:

1. The brain teaser topic is short, but it actually contains a lot of information. You should find the answer in the topic. Don't deviate too much.

2. When you find that if you continue to think, you have to think for a while, or you feel very troublesome, it is probably in the wrong way. Therefore, we should immediately change our thinking and find the answer from other angles and other ideas.

3. As a brain teaser, it is a question that can be answered in an instant without even thinking too much. For example, if you think too much about how to solve the above problems, or cling to the question of who is with whom, then you are completely confused by the topic.