Mark:
BEACH PARTY 
42 - 19 = 23  
 
ANTIVIVISECTIONIST 
18! / (2! * 2! * 2! * 3! * 5!) = 1,111,523,212,800  
  
 
HALF CUP 
24 
 
(How the heck could you know that?)  
 
totally inaccurate  
 
remarkable inadaptability 
 
Follow these instructions: Take one full cup of coffee and drink 1/6 of it. 
Replace what you drank with milk. Now, drink 1/3 of the coffee/milk mixture. Again, replace what you drank with more milk. Now, drink 1/2 of what is in the cup. Once again, replace what you drank with milk. Now drink the entire cup of mixed coffee/milk.
The questions are:
Have you had more milk or more coffee 
 
How much of each have you had 
 
My last four letters denote a crazy person. I can be used for decoration, or, in some cases, transportation 
 
Some singers can be described by my last four letters. I am a piece of glass or enamel 
 
Voiceless it cries,
Wingless flutters,
Toothless bites,
Mouthless mutters.
 
 
It cannot be seen, cannot be felt,
Cannot be heard, cannot be smelt.
It lies behind stars and under hills,
And empty holes it fills.
Ends life, kills laughter