It depends what kind of road you're on and the vehicle you are driving. Any built-up area (anywhere that has street lighting) is 30mph. Dual carriageways are up to 60mph, while motorways are a maximum of 70mph.
No, it is not legal to exceed the speed limit on a highway under any circumstances.
No, it is not legal to pass another vehicle by going over the speed limit.
the speed limit on a duel carrage way is 345mph.
The legal speed limit when driving in a school zone is typically 20 miles per hour.
50cc
No, it is not legal to drive 5 miles per hour over the speed limit.
The speed limit is the top speed that is legally allowed. If it is exceeded, you are breaking the law.
In the UK the speed limit comes into force as soon as you pass the speed limit sign. As such the distance is zero as you should have slowed down to the posted speed limit before passing the sign.
70
All vehicles get the speed limit on the road, whether it is a motorcycle motorbike or whatever, it it is a vehicle it has a speed limit.
It depends on the average speed which, in turn, depends on what the car is capable of, the speed limit(s), road conditions, traffic, stoppages. At 20 mph, the speed limit on my road, it would take 33.5 days! On a UK motorway, staying within the legal speed limit, just over 9.5 hours.
No, it is not legal to go 5 miles over the speed limit.