Yes
No
man thats illegal
Yes
Yes.
You're supposed to ride your bicycle on the pavement. Typically, riding on sidewalks is illegal.
yes or no
Laws regarding riding bicycles on sidewalks vary by location. In some places, it is illegal to ride a bicycle on the sidewalk, while in others it is allowed. It is important to check local regulations to determine if it is legal in your area.
yes it is illigal because it can be a endangerment to others
Usually it's illegal for all but small kids on slow bikes to ride on the sidewalk, but there can be local differences. You have to check what's applicable for your city
it may not be illegal, if it is a motor bike then the answer is yes it is illegal. if its a bicycle then i would say no, but either way it is not a SMART,RESPONSIBLE OR SAFE THING TO DO.
It depends a bit on the bicycle, the age of the riders and the local laws - but yes, it may well be illegal. Two adults on the same bicycle is often illegal unless the bicycle is specially built for that purpose - like a tandem. One adult is usually allowed to carry a kid (depending on weight/age and seating arrangement) though.
yes you can ride a bicycle.