Here's my first joke for this thread..

One day little johny ask his mom her age, his mom said, gentleman dont ask such question...

The other day, johny again ask his mom what is her weight, his mom replies gentleman dont as such question...

Than johny ask her why did dad left her, she got angry and said quit asking such questions..

One day Johny's mom drop her license from her wallet and little Johny found it and examined it and said hey mom you're 36 years old, you weigh 136 pound and dad left you because you got F in sex.......