Problem : Is the following sentence a statement? The car drove up the hill.

Yes.

Problem : Is the following sentence a statement? What time is it?

No, this sentence is an interrogative sentence. It declares nothing, nor can it be classified as true or false.

Problem : Is the following sentence a statement? If music is played too loud, it will damage a person's ears.

Yes.

Problem : Is the following sentence a statement? The water is colored red.

Yes.

Problem : Is the following sentence a statement? He is lazy.

No. The identity of the subject in unknown. A truth value cannot be assigned.