How many types of facts are there and what are they?

Q When is a scrum not a scrum?
Q How exception is different from error?
Q In the page load event i assigned dropdownlist's datasource property to a valid list. On the submit button click.. The same datasource property is coming as null. Why?
Q Won't nuclear always be cheaper than solar?
Q In the Vietnam war what was the signal US to evacuate Saigon
Q What is message subfile?
Q Each Web address is actually a series of numbers, which is usually called as---------
Q Acceleration acts always in the direction__?
Q How does carbon dating work?
Q What kind of work culture is followed in hotel industry?
Q In France what take place at Auteuil, Saint-Cloud and Chantilly