This is a variation on a philosophical thought experiment by Betrand Russell; how do we know there isn't a teapot orbiting the Sun between Jupiter and Mars? The answer is we don't, but it's very unlikely. Russell used the experiment to demonstrate the difference between believing something isn't true and being certain something isn't true.
No. Mermaids do not exist.
Mermaids do not really exist. They exist only in our imaginations. Though there may be "mermaids" at the unexplored reaches of our Earth (or any other planet for that matter), there are no real mermaids that we know of.
No. It is certain that mermaids do not exist.
No. Mermaids are purely fictitious creatures possibly inspired by early sightings of manatees.
Hate to break it to ya', but mermaids don't exist. there is not an age, and no one is a mermaid. if mermaids did exist, then you would have to be born as one! You should know that by now.
No. Mermaids do not exist and never did.
There are no mermaids anywhere, since mermaids do not actually exist.
Mermaids are not real and do not exist anywhere.
No. Mermaids do not exist and never did.
No there are no mermaids at all. they don't exist
No. Mermaids do not exist and you cannot bother something that doesn't exist.
no