2) Which country makes Panama hats? - It's the mexican hat. Among the central america and Andes it is seen. But Ecador is well known for it
3) From which animal do we get cat gut? - Catgut s a suture material, which is used in surgeries.
4) In which month do Russians celebrate the October Revolution?
Russians were using the Julian calendar. They've taken up the Gregorian caledar due to various reasons. Hence it happened in Oct 1917 in Julian calendar, Nov 1917 in Gregoraina calendar
5) What is a camel's hair brush made of? - made of squirrel, but I don;t know for what it is used.