RESET!
"3 men are in a car over a bridge, one is the father of the other ones son, what is their blood relation?"
Firstly, they are ALL 3 men.
Secondly, the riddle-statement-query does not guarantee that all 3 are related by blood.
Next, the final / actual question is, "from the given facts, (that there are 3 MEN in a car, over a bridge - one is the father of the other ones son) can someone establish and define any and all possible blood relationships between them?"
Certain amazing possibilities exists, I am too drunk to attempt discovering them. MORE GUINNESS!!