Question

those are funny dogs no singular com fica?

Answer 1

This is a Funny Dog.

Answer 2

This is used for singular objects and These is used for plural objects.

This is my bag
These are my friends

That is used for singular objects, and Those is used for plural objects that are located away.

That is my car parked over there
Those are my apple trees at the back of the garden

So, the correct answer is: "That is a funny dog"