Answer:
1. servants, citizens
2. earthenware (there is only one existing antonym)
3. cautious, careful
4. collection, deposit
5. helplessness, weakness
6. intellect, sage
7. illogic, insanity
8. rationality, judgement
9. beneficial, helpful
10. challenges, confutes
11. absurd, doubtful
12. inaudible, undetectable
Explanation:
These can all be found in the Merriam Webster Thesaurus.
B.
If you think of the opening *seconds*, there isn't enough time for a weather report or interview or story summary in just a few seconds. Also, I've seen an opening animation in all the news broadcast beginnings I've ever watched.