Riddle 1: Hanging Gardens of Babylon
When King Nebuchadnezzar brought his new queen to Babylon, she missed the mountains and gardens of her homeland. To make his wife happy, Nebuchadnezzar built the most beautiful gardens in the world.

The garden had terraces with flowers, trees and fountains. The inside walls were more than thirty-five stories high. It is estimated that every story was ten feet tall.

How many feet tall was the building that housed the Hanging Gardens of Babylon?

a. 105
b. 45
c. More than 350 feet
d. 350