Answer:
What do you call a three humped camel?
I am an odd number. Take away a letter and I become even. What number am I?
I am a time for gathering crops. Remove the first three letters and I become an object you can wear.
The more you take away the bigger I get. What am I?
I am mother and father, but never give birth or nurse. I'm rarely still, but I never wander. What am I?
What language does a billboard speak?