Answer:
What can fill a room but takes up no space?
What starts with an 'e' and ends with an 'e' but only has one letter?
I walk on 4 legs in the morning, 2 legs at noon, and 3 legs at night. What am I?
Squeeze me and I cry tears as red as flesh, but my heart is made of stone. What am I?
I am there when you sit, but gone when you stand. What am I?
I have feet on my head