What is the next number in this matchsticks series riddle?

Can you figure out the logic I used to decide the order of the following words:
gun, shoe, spree, door, hive, kicks, heaven, gate, line, den

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

I cannot talk, but I always reply when spoken to. What am I?

Can you find out the number that should replace the question mark with a valid reason?

What is the next number in this series?

4,12,84,3612....

I can turn polar bears white.
I can make anyone dance.
I can make everyone cry
I can make your hands clap
I can make you thin.
I can make you smile.
I can make you smile

Can you guess the riddle?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

What part of the chicken has the most feathers?

What English word has three consecutive double letters?