Which tags are Empty tag?

Question

please answer about empty tag.

Answer 1

<img> there is no </img> tag...

Answer 2

@Animesh: <div> and <span> are not empty tags

Answer 3

the tags which does not require a closing tag.
Example, <Br> beacause there is no </br> tag

Answer 4

Div and span

Answer 5

tr is not empty

Answer 6

Which one isn't the empty tag here?

1.<img>
2.<tr>
3.<br>
4.<ht>