Anyone VS Any One

Maybe he didn't want ____ else to know?
Which word should be in this sentence? 

• Anyone
• Any one 

You can take ____ of these items for free. 
Which word should you use in this sentence? 

•               Anyone
•             Any one

What does anyone mean?

• any person or all people
• any single group of persons or things

What does any one mean? 

• any person or all people
• any single group of persons or things

Is any one here?
Is this word used correctly?

• yes
• no

I'm not afraid of anyone!
is this word used correctly?

• yes
• no

Any one of these items are great!
Is this word used correctly? 

• yes
• no

Anyone of these items please!
is this word used correctly? 

• yes
• no