Answer:
The stack just might be sent all over. Full of what's new, yet it's nearly obsolete.
What do you throw out to use and take in when you're done?
What can touch someone once and last them a life time?
Long and think, red within, with a nail at the end.
The eight of us move forth and back. To protect our king from the foes attack.
What is so fragile that saying its name breaks it?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?