Answer:
What can you lose that will cause other people to lose theirs too?
This guy crossed a road and everyone wants an explanation.
What has one head one foot and four legs?
What can fill a room but takes up no space?
I'm where yesterday follows today and tomorrow is in the middle. What am I?
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.