Translation of "Fishy" in Spanish

Smells pretty fishy.

Huele a pescado.

This sounds fishy.

- Esto suena dudoso.
- Esto suena sospechoso.

There's something fishy.

Aquí hay gato encerrado.

But it is fishy... she says she was in Iraq, Afghanistan,

Igual es sospechoso porque ella dice que estuvo en Irak, en Afganistán,

- I don't like the look of it.
- There's something fishy going on.

Esto me suena muy raro.

Are we really in front of a new Singapore or there's something fishy here? Should we imitate

øDe verdad estamos ante un nuevo Singapur o hay gato encerrado? øDeberÌamos imitar