Answer:
What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?
I'm a god. I'm a planet. I measure heat.
What is not a ball but yet a sphere, and holds all lands and people year after year?
Makes apples fall from trees
If you suffer from this, you might wear a wig
What is big and yellow and comes in the morning, to brighten mom's day?