yes
false
No, it's a metaphor, with a more exotic sense than a simile. "She wanted to be like a blade of grass amid the fields" is a simile.
eagles are bigger than humming birds
his bathtub contains more water than a water tower
More than 50,000
more than just friends by mariah carey
rapid water
An ordinary simile is a comparison using "like" or "as" that is relatively straightforward and brief, while an epic simile is a more elaborate comparison found in epic poetry that can extend over several lines or even multiple paragraphs. Epic similes typically use more exaggerated imagery and involve more elaborate descriptions than ordinary similes.
metaphor
No, there are far more than four bald eagles in the world.
Corrosion in acid solutions is much more rapid than in neutral solutions, and the latter is more rapid than in alkaline solutions
"More fierce and more inexorable far than empty tigers or the roaring sea."