The clock is the keeper of time . Is this a simile

No, this sentence is not a simile. It is a metaphor, as it compares the clock to a keeper of time without using "like" or "as."

The water called invitingly to the hot children . Is it a metaphor

Yes, the sentence "The water called invitingly to the hot children" is a metaphor. It personifies the water by suggesting it has the ability to call out and be inviting, even though water does not have these human characteristics.

The rusty door hinge screamed every time the door open. Is this personification

Yes, the sentence "The rusty door hinge screamed every time the door opened" is an example of personification. It attributes the human act of screaming to the rusty door hinge, which brings the inanimate object to life by giving it human qualities.

The wind is like piercing snow . Is it metaphor

Yes, the sentence "The wind is like piercing snow" is a metaphor. It compares the wind to piercing snow without using "like" or "as," which is characteristic of a metaphor.