this is as difficult as trying to break iron with you bare hands.
this is as difficult as trying to pass a test without studying.
this is as difficult as trying to sing a song without the lyrics.
that test was as difficult as n obstacle
A simile.
A metaphor
As quick as a wink is a simile. ----
It is a simile.
A common simile for "as heavy as" is "as heavy as a ton of bricks." This expression emphasizes an extreme weight, conveying the idea of something that is particularly burdensome or difficult to lift. It effectively illustrates the intensity of the weight in a vivid manner.
simile It is an example of a simile (uses like or as). A simile in itself though is a type of metaphor.
simile
that man
It is a similie as you are comparing (something) to how sly the fox is. A similie uses the words "like or "as".
simile
simile