I have some of stories regarding funny incidents what I attend in life.
Can anyone tell me how to post and share those incidents with peoples?

Are you certain they want to receive them? If so then you could set a distribution list. You could always use Facebook or another social networking site for this.

Please ask them in advance. I would also set up a different email address for sending out this type of mail. Eventually many will block your "funny" emails and thus your address.