On the side of the road you normally drive on. If the wind is THAT strong that you are unable to keep it under control, park it, The conditions are too unsafe to operate.
As a warning at corners or if other vehicles are near you.
Turn on your headlights and your wipers drive a bit slower than when in good weather
Slippery conditions.
overdrive
Obviously if it is a two-land road there is one lane in each direction, so the law dictates which side--right in most of the world, left in the U. K. If there are two lanes for the direction you are going, you still have to consider other traffic even if you do have a crosswind. If I were on a multi-lane road with no other traffic and a strong crosswind, I would drive in the up-wind lane so if a gust blew me to the side, it would be to another lane, not to the shoulder or the median.
low beam
2 second
At least three seconds, more in adverse weather conditions.
10-15 seconds
It means you should have a mechanic check it out soon. That could put you and others in a dangerous situation.
Yes, where it is windy and or the road is wet or your vision is limited by weather, you will take longer to stop your vehicle. To allow for this you should increase your distance from the vehicle ahead of you AND drive more slowly.