Given a travel related situation, and given a specific question about the situation, summarize the question into a title

[Q]: (I think) my question is simple. I'm appealing to the experience of others to ask


  Would you recommend carrying a sleeping bag while hostelling around Europe in summer?


[A]: Sleeping bag while hostelling around Europe in summer?


[Q]: I will be visiting Jerusalem in a week. Is Israeli government allow to pray in Masjid Al-Aksa? Can I go there freely? Is there anything I should know before I go there?

[A]: Possibility of praying in Masjid Al-Aqsa (Jerusalem)


[Q]: Recently, I was cruising on the Danube river from Bratislava to Vienna and we were encountering these small green rocket-shaped objects floating in the water roughly after each kilometer. They were not staying still but also sailing in the same direction as our boat but slower.

What are these UFOs (Unidentified Floating Objects)?



[A]:
What are these small green rocket-shaped objects floating in the Danube?


