Answer:
I break down buildings, I crumble mountains but you can't see me. What am I?
What goes through a door but never goes in and never comes out?
What time of day, when written in a capital letters, is the same forwards, backwards, and upside down?
I am merry creature in pleasant time of year as in but certain seasons I sing that you can hear; And yet I'm made a by-word A very perfect mock; Compared to foolish persons And silliest of all folk.
I am quick when Iβm thin. I am slow when Iβm fat. Wind is my worst nightmare.
How can you throw a ball as hard as you can, to only have it come back to you, even if it doesnβt bounce off anything?