You have to take the written test, and take a road test in the appropriate class of passenger vehicle. If you have a Class B CDL, but your road test is in a vehicle requiring only a Class C CDL, then your endorsement will come with a restriction limiting you to Class C passenger vehicles.
If you're trying to get endorsed for a school bus, a criminal background check is also required. The DMV can tell you how to go about doing this.
Only passenger and motorcycle endorsements require a road test of their own.
You would have to be more specific about what a Q restriction is. Restriction codes vary by state (here in North Carolina, they are numbered). However, to test for a passenger endorsement, a road test is required as well as a written test, even if you have a CDL already.
In most states they already are and have been for 5 years. In California, they never will be. Check with DMV in your licensing area. Varies by state. In Colorado every 5 years another test is required on 79s.
If Texas has not already filed a suspension you will be able to. If they've already filed, probably not. Pay the ticket. It's just plain easier.
There are already many passenger helicopters on the market, all of which are capable of vertical takeoff and landing (VTOL).
There is no statute of limitations. The accused already has notice of the charges.
43 is already prime; no factorization required.
11 is already prime; no factorization required.
2 is already prime, no factorization is required.
The number is already in decimal form: no conversion is required.
223 is already prime. No factorization is required.
53 is already prime, no factorization required.