I can teach you how to bike. I know that there area some people out there who do not know how to bike. Especially people migrated from countries where bikes are not popular.

I can teach you how to bike in 5 lessons. Only for people between 17y.o and 60y.o. I am saying I shall do my best to teach you in 5 lessons (of one hour each). I cannot really guarantee that you will learn because it changes from person to person...