Answer:
I can be entertaining until you realize some pieces have been lost.
I jump when I walk and sit when I stand.
Curtail me thrice I am a youth; behead me once a snake; complete I'm often used in truth when certain steps you'd take.
The 8 of us go forth and back to protect our king from a foes attack
If a plane crashes on the border of US and Canada where do they bury the survivors?
No matter how little or how much you use me, you change me every month.
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic