Answer:
Metaphor
But, soft! what light through yonder window breaks?
It is the east, and Juliet is the sun.
Arise, fair sun, and kill the envious moon,
Who is already sick and pale with grief,
That thou her maid art far more fair than she:
(William Shakespeare, Romeo and Juliet)
Verbal irony
To sorrow
I bade good morrow
And thought to leave her far away behind
But cheerly, cheerly,
She loves me dearly;
She is so constant to me, and so kind.
I would deceive her,
And so leave her,
But ah! she is so constant and so kind.
(John Keats, “Endymion”)
Simile
The Assyrian came down like the wolf on the fold,
And his cohorts were gleaming in purple and gold;
And the sheen of their spears was like stars on the sea,
When the blue wave rolls nightly on deep Galilee.
(Lord Byron, “The Destruction of Sennacherib”)
Explanation:
A simile is a figure of speech. A simile is used for a direct comparison of two things. The comparison is made by using 'like' and 'as'.
A metaphor is a figure of speech. A metaphor is also a comparison but the comparison is made between two things which are very different for each other but posses one similarity in them.
Verbal irony is a type of irony. When the speaker means something very different from what he exactly is speaking, is said to verbal irony.