Yes they are open.

Yes it is, we did it last month Just make sure you choose a good spot close to toilets and have enough of very warm clothing and strong tents as it can get very cold and stormy. carry lots of food water and all essentials.

Yes It is allowed but please make sure to wear mask and maintain Social Distancing to avoid fines.

I don't think so. They have rules.

Yes, overnight camping is allowed, but keep it to immediate family members. Also, call the tourism department ahead of time to find out the current conditions and COVID-19 rules because the rules change almost every day.

Probably about 30 minutes worth every minute. Totally amazing stooped at cafe and enjoyed cold drink and pizza on way back down. Does get quite windy at top and not recommended if travel sick.

At the moment public parks have been opened, only family members or a group of 5 can be near each other, however, you have to check the emirate's sterilization time restrictions

Yes the road up the mountains will be open and I am sure the cafe will be open also. It is a beautiful drive.

The road from the base of the mountain up to the top starts at the bottom of what I think is a “wadi” (a river valley, that floods with water when it rains). When it rains heavily, this road is subject to flooding. Sometime in early 2019 (and perhaps before) the road was washed away in part by heavy rain. It was repaired, but the road subsided after the repairs and caused traffic delays (due to a dip in the road, hard for some cars). Very recently there was again heavy rain and I understand (but can not confirm) that parts of the road may have been washed away or are unsafe for driving - hence the road closure at present.