英语脑筋急转弯

A group of campers have been on vacation so long, that they've forgotten the day of the week. The following conversation ensues.

You pick it, You peel the outside, You cook the inside, You eat the outside, And throw away the inside. What am I?

When may a man's coat pocket be empty, and yet have something in it?

If a chicken says, "All chickens are liars". Is the chicken telling the truth?

There was a man who was born before his father, killed his mother, and married his sister. Yet, there was nothing wrong with what he had done. Why?

A father's child, a mother's child, yet no one's son. 

What falls down but never breaks?

I never was, am always to be. No one ever saw me, nor ever will. And yet I am the confidence of all, To live and breathe on this terrestrial ball.

There is a clerk at the butcher shop, he is five feet ten inches tall, and he wears size 13 sneakers. He has a wife and 2 kids. What does he weigh?

The rungs of a 10 foot ladder attached to a ship are 1 foot apart.