They can be found mostly at the power plant which is a little east from cerulean city then you must use Surf to get there.
Mr.Mime can learn electric moves and psychic moves.
you cannot rent any Pokemon in red version
When you find the first lock the next one will be beside the first
rock smash isn't in Pokemon red version
No
You can't, you can only do that on Pokemon yellow version
Red version was not made to migrate with emerald.
No!
A modified version of Pokemon Red.
No
Yes.
You can't get to Four Island in Pokemon Red Version.