Knock KnockWho’s there !Brother !Brother who ?Brother-ation, I’ve forgotten your name !

Sister: Mom wants you to come in and help fix dinner. Brother: Why? Is it broken?

Brother: Which is farther away- NY City or the moon? Sister: NY City. Why do ask? Brother: Well, I can see the moon, but I can’t see NY City.

My sister wanted to marry a man clever enough to make a lot of money but dumb enough to spend it on her !

Do robots have sisters ?No, just transistors !

How do you know if your little brother is turning into a fridge ?See if a little light come on whenever he opens his mouth !

A little demon came home from school one day and said to his mother, ‘I hate my sister’s guts.”All right,’ said his mother, ‘I won’t put them in your sandwiches again.’

Mother: Jared, get your little sister’s hat out of that puddle.Jared: I can’t mum, she’s got it strapped too tight under her chin!

Teacher: What’s this a picture of ?Class: Don’t know, Miss.Teacher: It’s a kangaroo.Class: What’s a kangaroo, miss ?Teacher: A kangaroo is a native of Australia.Smallest boy: Wow, my sister’s married one of them

Why did your sister jump out the window ?Because she wanted to try out her new spring suit

My sister is so dim she thinks that a cartoon is a song you sing in a car.

Why does your sister have yeast and shoe polish for breakfast ? Because she wants to rise and shine.