Title: Serbo-Croatian.
Question: Of the two Serbo-Croatian variants, which had twice as many speakers as the other?

Title: Financial crisis of 2007%E2%80%9308.
Question: Peter J. Wallison believes that the huge number of these loans led to the financial crisis?

Title: Aircraft carrier.
Question: What have the old converted cruiser aircraft carriers evolved into?

Title: Presbyterianism.
Question:
How many members are in the National Presbyterian Church in Mexico?