Answer:
I plow and plow but never sow.
The last man on Earth received a phone call, who was the caller?
In spring, I am gay in handsome array. In summer, more clothing I wear. When colder it grows, I fling off my clothes. In winter, quite naked appear. What am I?
Always in you, sometimes on you. If I surround you, I can kill you. What am I?
What word becomes shorter when you add two letters to it?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.