Trick Question

A cowboy rides in on Friday, he stays for three days and Left On friday how did he do it?

• He MAGIC!! OMG
• He is dead
• i dont know what you think i am a guinus or something? come on gimme A break
• you did not put the extra information which is he stayed for 1 week not three days duh!
• none of the answers below or above
• his horse name was friday