Oxymorons

Main Entry: ox·y·mo·ron Pronunciation: "äk-si-'mOr-"än, -'mor- Function: noun Inflected Form(s): plural ox·y·mo·ra /-'mOr-&, -'mor-/ Etymology: Late Greek oxymOron, from neuter of oxymOros pointedly foolish, from Greek oxys sharp, keen + mOros foolish Date: 1657

a combination of contradictory or incongruous words (as cruel kindness) - ox·y·mo·ron·ic /-m&-'rä-nik, -mo-/ adjective - ox·y·mo·ron·i·cal·ly /-ni-k(&-)lE/ adverb

Here are 25... 

Act naturally 
Advanced BASIC 
Airline Food 
Almost exactly 
Alone together 
British fashion 
Business ethics 
Childproof 
Exact estimate 
Found missing 
Genuine imitation 
Good grief 
Government organization 
Legally drunk 
Living dead 
Military Intelligence 
New classic 
New York culture 
Resident alien 
Same difference 
Sanitary landfill 
Silent scream 
Small crowd 
Soft rock 
Software documentation 
Sweet sorrow