Answer:
A white field, and when it is plowed, its soil is black.
i am 4 times as old as my daughter in 20 years time i shall be twice as old as her how old are we now
Material for making balls and men that only shows up at certain times of the year.
Possibly the only famous plumber who has the courage to ever to rescue a princess.
What has a tongue but cannot talk gets around but cannot walk
What flies without wings?