Answer:
What word has kst in the middle, in the beginning, and at the end?
I am black within and red without; with four corners round about. What am I?
I am the best thing that can happen after a stick hits a ball.
What can you catch but not throw?
I'm sometimes white but most often I'm black. I take you there but never bring you back.
A little house full of meat, no door to go in and eat.