Nope. If you had to speed in order to pass, you didn't need to pass.
In some states and countries the passing lane on a highway is reserved strictly for passing and you can get a ticket for driving in it when you are not passing. In other jurisdictions, you are permitted to drive in the passing lane. This is why you need to be aware of local friving laws when you are driving away from your home.
Speeding
Speeding is never permitted, at least not in CT.
No. If the vehicle you are passing is going at the correct speed, why should you need to overtake. When overtaking a vehicle you should ensure there is enough clear road ahead of you to pass the vehicle without over speeding. If this is not the case you should not attempt an overtaking manoeuvre.
Only if you are speeding over the posted limits.
no passing
no passing
In the USA, it means no passing.
It's called passing gear. It is normal.
who was for the passing of the 18th amendment
So long as you are not speeding as you are passing yes. However if the vehicle you are passing is traveling at the speed limit the cop that books you will contend that you had no reason for passing.
No passing to the left should be done when you are approaching a crest or curve in the highway. A driver's view is obstructed during these times and passing would be dangerous.