Questions about example sentences with, and the definition and usage of "Kid"

A: It might mean:

I don't want my kid to be the next ex-hero.

私の子供が次の元ヒーローになりたくない

A: A lot of kids

A: Yeah well, it means you'll be in the play. :) "existing in plays", part of the plays, so naturally you're performing in them.

A: “Keep them occupied” is the same meaning as keeping someone busy. In your example, it means that they wanted the children to always have something to do, or to stay busy. You can also use the word “stay” instead of “keep” and it means the same thing. For example “I need to stay occupied at work or else I will fall asleep”. Does that help?

A: If you say someone is using "kid-gloves" it means that person is being too cautious or careful. How you would be extra careful around a kid.

If Person A had a really bad day and Person B needs to tell them bad news but is being too careful around Person A, Person A can say: "Stop treating me with kid-gloves! I can handle the bad news."

A: Is used when you agree with someone.
E.g. Tom said "School is so hard and tiring"
Ben replied "yeah, no kidding"

A: Are you kidding?
Christopher was kidding when he said he had $1,000,000

A: are you kidding me?
You have to be kidding me?

A: Do you feel cold?
Are you warm enough?
Are you comfortable?

A: They mean the same thing, though "I'm just kidding" is more common.

A: They all refer to the same thing, a class or classes for children. It could be for school or after school programs. It could be craft classes or skill classes targeted to a particular child’s age group.
All the options you mention are just the singular or plural and possessive form of the words.
Not sure of all the grammatical accuracies so best for you to consult a grammar reference.
Do note that:
Kid’s is singular and possessive form
Kids’ is plural and possessive
Class is singular
Classes is plural

A: You seem to be struggling with to and for. This link might help.
https://www.espressoenglish.net/difference-between-to-and-for/#:~:text=As%20you%20can%20see%20in,is%20always%20with%20a%20noun.
and this link
http://www.englishandculture.com/blog/bid/95563/Quick-English-Grammar-Tip-To-Versus-For

A: hi!! there is no difference but i think the second sentence sounds more natural.

A: They can, in common speech, be used interchangeably at times. Let's say I said something that insulted you and you took offense.
"I was just joking!"
"I was just kidding!"
"I was just playing!"
Same thing.

However, there are differences in meaning. A joke is something funny that requires a set up. This could be a story or a question with a punchline. A funny story without a punchline is just a funny story. A joke could also be hiding a balloon under someone's seat to make a fart sound when they sit down. Confusing as it is, this would actually be "playing a joke on them."

Kidding is usually when you say something lightly offensive, true or not, as a joke. There is usually a person or persons who are the target of this. The phrase "Don't kid yourself" can be used in reply to someone in a nice or a mean way, depending on what they just said. Another classic saying is "Don't kid a kidder" as in "I don't believe you."

Playing is, at least in proper speech, what children do for fun. You and I might also play a game together, like tennis or baseball. In common speech and slang it has other meanings, from joking around to cheating on your romantic partner with another person.

A: Crying does not work. You have to learn to talk.

A: I would say: The child got some ink on his fingers. When he tried to remove it with water, I remarked, "Oh! Water doesn't work. You have to try something stronger. Try this soap."

A: “Write correctly” means it was written wrongly. “Write properly” would be more appropriate to say to a kid who wrote badly.

A: This is natural!

You can also say “... answer her with ‘yes’ “

A: It sounds fine, instead of "what" you can also use "How" for example, "How does it feel like?" and "How does it taste?"

A: Very natural.

A: × I invited these kids so far, but will invite some of his classmate from now on.
✓ I invited these kids so far, and I will now begin to invite some of his classmates.

A: It means you will prepare the bath for the kid!

A: The second. Draw a bath = run the bath= prepare the bath by filling with water

A: I would say : Eat your food more slowly.
Or : Don't rush your food.
Or : Take your time over eating your food.
"Take it easy", "There's no rush" and "No rush" on their own don't convey that you are talking about eating. So, with all expressions like this you need to include "eating" or "food" with the expression.