What goes up the hill and down the hill, And spite of all, yet stand still?
There are two sisters: one gives birth to the other and she, in turn, gives birth to the first. Who are the two sisters?
A man is twenty years old but has only had five birthdays. How is that possible?
What moves and touches water but doesn't get wet?
What always comes into a house through the keyhole?
I roam through the lands hoping to rescue my love. I search high and low and will stomp on you if you get in my way!