What is a small sofa designed for two people called?

What is a small porch or steps leading to the entrance of a house called? What word names a small quantity you might pat on with a finger? What word names a small shrub and the surname of Reagan's vice president? A small slave girl named Topsy appears in which novel? Which athletic shoe brand is named for a small South African antelope? Which word names a small stream and sounds like the noise a squeaky stair makes? A small town is invaded by blood-drinking aliens who look like clowns in which 1988 cult film? What is a glowing, smoldering remnant in a dying fire called?