Title: Spectre (2015 film).
Question: In what month was the preview of Spectre released in movie theaters?

Title: Railway electrification system.
Question: Why some lines of Paris Metro have to operate on a four-rail system?

Title: Windows 8.
Question: What is IDC?

Title: Josip Broz Tito.
Question:
Which group did Tito order his forces to assist?