Answer:
A boy throws a baseball. It travels 40 feet and then goes right back to the boy. How is that possible?
The yellow house has yellow window, the red house has red windows, what colour windows does the green house have?
There are two sisters: one gives birth to the other and she, in turn, gives birth to the first. Who are the two sisters?
There are 5 sisters in a room: Ann is reading a book, Margaret is cooking, Kate is playing chess, Marie is doing the laundry. What is the fifth sister doing?
How far can a man hike into the forest?
I love spinach.