Break it and it gets better; set it and it’s harder to break.

I have three feet, but I can’t stand without leaning. I have no arms to hold me up. What am I?

What loses its head in the morning and gets it back at night?

Take away the whole, and some remains. What is it?

Turn me on my side, and I am everything. Cut me in half, and I am nothing. What am I?

You find me in December, but not in any other month.

What am I?

With pointed fangs, I sit and wait; with piercing force, I crunch out fate. I grab victims, proclaiming might, and physically join with a single bite. What am I?

What is able to go up a chimney when down but unable to go down a chimney when up?

How is seven different from the rest of the numbers between one and ten?

A is the brother of B.
B is the brother of C.
C is the father of D.

How is D related to A?