*Thisese* 3 questions is*are* only for mature or even people after 50’s*people* or even *those* *in their* 50’s *or older*.

"Questions" is a plural word and so "are" must be the verb. Use "people" because you are referring to more than one person.

Younger *personople* will understand those questions.

Again, use "people" to refer to more than one person.

But *they* don’t have that rich “life experience” to answer such questions.

This is not a complete sentence. You need a subject .

1 where *do* I come from?

A verb is missing in this question.

For me, *the* first time I hear *thisese* questions.

A definite article ("the") is needed. Also, "questions" is plural, therefore "these" is correct.

Here is*are* my answers:

Because "answers" is plural the correct word is "are".

1 *I* come from my mother’s belly

You are missing the subject in this sentence ("I").

3 I enjoy life";" that is what I do

A semicolon (";") connects two complete sentances.

M*This* makes me remember this Ted ED *talks*.

This 3ese three questions isare only for mature or even people aftepeople or those who are least in their 50’s.

Younger personople will understand thoese questions.

But, they don’t have thate rich “life experience” to answer such questionsnecessary to answer them.

1 w. Where did I come from?

2 w. Where will I go?

3 w. What have I done.?

Here isare my answers from the first time I heard these questions:

Combine with the last sentence, which doesn't make sense on its own.

1. I coame from my mother’s belly.

2. I will go to either heaven or hell.

3. I enjoy life; that is what I do.

MIt makes me remember this TedED talks.