Both of these sentences are incorrect. In English you have to become "something". These sentences are unclear and such, not understandable. However if you were talking about "butterflies" you can say (How did you become) a butterfly? Became is past tense and must be used ( _x_ became _x_) The caterpillar (became) a butterfly.

Earlier today, there was very strange weather. One hour ago, it was sunny with blue skies. Now, there is strong rain because a typhoon is approaching Japan. I live in an area far away from the typhoon. This typhoon is very large! I saw on the news that people who live in typhoon area must evacuate to a place of refuge. The news also said to prevent infection of coronavirus, some people are not accepted into the place of refuge. I hope all those affected can ensure their own safety.

Number one is correct but in American English it is natural to say "Don't you have money" even though "Do not you have money" is not correct.

So this one is tricky. If you said "I'm wearing a black and white armband" I will understand that you have One armband. Because you said "I'm wearing Both a....." I'll understand that you are wearing Two armbands: one black, one white. However "I'm wearing a black and a white armband" sounds natural. When it comes to people, especially a set of parents. You don't use Both in this way because the assumption is that you're talking about two people. Here Both should emphasize something special or specific, such as "My parents are -both- Mexican and Black".

Such is a word that refers to multiple examples or requires you to expand on a topic. I find that "As" follows "Such" normally. p1: There are many flavors of ice cream to choose from. p2: Such as? p1: Vanilla or Cherry P1: What kinds of things do you store in your trunk? P2: Oh you know, Shoes, shirts, socks and such....

All of them are technically right. the " that means" and "meaning" sounds natural to me. Personally if I want to define a word i'll say "that means". "That means" i feel reminds me more of a dictionary.