Hold on to your face masks and sink your claws into this Halloween's ultimate horror flick. The infamous Kings of Terror are finally united in a new movie, "Freddy vs. Jason," now playing in theatres.

America's favorite psycho-killers, Freddy Krueger and Jason Voorhees, have been wreaking havoc for decades in their long history of signature films. Put them together, and there's no telling what kind of hell-raising will ensue. Everyone knows Freddy and Jason as instigators of gore scenes galore in their respective "A Nightmare on Elm Street" and "Friday the 13th" movies, but what really differentiates the country's two most villainous predators? Test your axe-murderer smarts with the following trivia questions:

Think You Know Horror?

1. In the "A Nightmare on Elm Street" movies, what is the only way to evade Freddy Krueger's deathly grip?

2. Which lake is haunted by Jason Voorhees in "Friday the 13th"?

3. What is the color of Freddy Krueger's blood?

4. Which evildoer earns the award for most onscreen action (most sequels to the original movie?

Answers to horror quiz:
1. Stay awake.
2. Crystal Lake
3. Green
4. Jason in the "Friday the 13th" movies