Title: East Prussia.
Question: Of the population in East Prussia, what percentage of those were German?

Title: Somalis.
Question: Aside from the koofiyad, what do Somali men wear on their head?

Title: Time.
Question: Artifacts from which era suggest that the moon was used to reckon time around 6,000 years ago?

Title: Neptune.
Question:
What might the ice particles of Neptune's rings be coated with?