Question

Marty gets such excellent grades because his mind is a sponge.

Hyperbole
Personification
Metaphor
Simile

Answer 1

This is a metaphor.

Step-by-step explanation:

How you ask well a metaphor compares or finds similarities without using like or as.

Have a great day or night =>

Answer 2

metaphor..

Step-by-step explanation:

a figure of speech in which a word or phrase is applied to an object or action to which it is not literally applicable.