Is saying "where is the brakes" is correct? I was watching a video on YouTube and the guy on it said: Ow! Where is the brakes?
No, it would be, Where are the brakes as brakes are plural. Just for extra clarification, the mistake in the sentence is the usage of where's as where's can refer to where is, where has and where does and we are safely assuming he means where is. It would be much better to say where're (where are) the brakes as it is suited to the plural subject.