Title: Antenna (radio).
Question: What is not adjustable when it comes to a transformer?

Title: Melbourne.
Question: By what year had Melbourne overtaken Sydney as Australia's most populous city?

Title: Insect.
Question: What is a common insect used for research purposes?

Title: Gamal Abdel Nasser.
Question:
From whom did Nasser want to seize control of Egypt's military?