Nah, as mentioned above 300kts (280 in turbulent air) or M 0.65 if you have only one single leading edge device out, otherwise its 230kts.
For the third case it really depends on the situation, but if you do not have any immediate danger a controlled disembarkation might be better than a full blown evacuation. If you had the time to burn off fuel, do all the checklists, prepare the cabin all ground services will be on high alert and standing by and seconds after touch down you will have the fire service at your aircraft assessing the situation from the outside.