1. What do the following pairs of words have in common?

Breakfast - Lunch
Work -Play
Bed - Board
Leg- Elbow
Bath - Pool
Sun - Dark

2. The answers to the clues below will have something in common.

Ancient Chinese philosophy, with "The"
Action plans doomed to inevitably conflict
"Unalienable right" listed in The Declaration of Independence
Essential sequence of activities which must be completed to reach a goal

Answers:

1. All the words are the names of rooms.
    The idea of pairing them up was a red herring. 

2. THE WAY of Lao Tzu
    Collision COURSE
    PURSUIT of happiness
    Critical PATH