On a comment to one of my other questions on this site, a user said:

It’s much easier to answer questions like this when you specify where you've come across the word.

Is the use of the word this correct in such case?

I would be inclined to say “questions like these”, or if I wanted to use the singular form I would rephrase it as “a question like this”.

On a comment to one of my other questions on this site, a user said:

It’s much easier to answer questions like this when you specify where you've come across the word.

Is the use of the word this correct in such case?

I would be inclined to say “questions like these”, or if I wanted to use the singular form I would rephrase it as “a question like this”.

On a comment to one of my other questions on this site, a user said:

It's much easier to answer questions like this when you specify where you've come across the word.

Is the use of this correct in such case?

I would be inclined to say "questions like these", or if I wanted to use the singular form I would rephrase it as "a question like this".

On a comment to one of my other questions on this site, a user said:

It’s much easier to answer questions like this when you specify where you've come across the word.

Is the use of the word this correct in such case?

I would be inclined to say “questions like these”, or if I wanted to use the singular form I would rephrase it as “a question like this”.