The six words below can be preceded by six different, but related words:

1. Wisdom
2. Suspects
3. Questions
4. Traffic
5. Bearer
6. Knowledge

Answers:

1. Conventional wisdom
2. Usual suspects
3. Routine questions
4. Pedestrian traffic
5. Standard bearer
6. Common knowledge 

Credit: #1-4
Norm Guggenbiller
PEDESTRIAN TRAFFIC