I do not know. I just add the information that I DO have as soon as I DO have it. 
1. I can imagine it may well be, and think so, just not 100% sure
2. Highly unlikely (assume NO)
3. Not sure, but iirc 8 AM (which stands to reason too) - can we add closing hours though, independently?
* Note: like in many other tourist places, openings hours are likely to vary between seasons... just add the bottom line I found, and let someone else update it if & when need be??