Title: Royal Dutch Shell.
Question: Royal Dutch Shell agreed to acquire all the business of what entity in June 2010?

Title: Hyderabad.
Question: There may be Iron Age findings near Hyderabad, what age are they thought to be from?

Title: Arena Football League.
Question: When was the abortive first CAFL season supposed to have taken place?

Title: Antenna (radio).
Question:
When is polarized radiation reversed?