Billboards I think not sure because its under art and photography right?
The answer is Hyperbole is an exaggeration for the sake of emphasis, humor, or effect. This type of figurative speech is common in everyday conversations, often when people want to state their position without seeming too direct.
Answer:
for 1 and 2 you can put down, "My sister is as brave as a lion" and for number 2 you can put down "my brother is as healthy as a horse" for the similie part.