Question: Would someone please explain to me why Marcia did not just simply remove her dangly bracelet that endangered the girls standing in the house of cards competition after Carol said "Oh Marcia, Marcia, your bracelet"? It would have made it less stressful on her not to mention her team, and she wouldn't have had to restrain it with her other hand.
Answer: There were several episodes throughout the run of the show where Marcia was infatuated with a guy she went to school with. This bracelet could have been a gift from her then-boyfriend; as such, she would not want to take it off, as a sign of loyalty. A stupid thing to do, of course, but it's not a mistake for a character simply to be dumb.
Question: Why exactly was Dick Dastardly so anxious to capture Yankee Doodle Pigeon?
Answer: During the First World War, pigeons were used to carry messages across the battle lines. Yankee Doodle is carrying some sort of American orders or intelligence.
Question: We never found out what the ham and chicken bones had to do with anything. They were ham and chicken until Scooby ate them. Afterwards, Shaggy wonders why the ghost would keep ham and chicken in the fridge. This was never answered in the episode. Why were they important?
Chosen answer: A ghost wouldn't have to keep any food in the fridge - they don't need to eat. So it is one thing that proves the ghost is not a ghost.
Chosen answer: The general consensus is that Big Bird is a canary; however, according to Wikipedia, he's also been described as a condor as well as an ibis. The one constant factor is that regardless of his species, Big Bird is always eight feet, two inches tall and flightless.
Answer: The dangling bracelet was used for dramatic purposes - to keep the audience on edge.