Two year memes

I've been looking for my ex-girlfriend's killer for the past two years.

But no one would do it.

To become a licensed airline pilot requires 1,500 hours (two years) of training. But it only takes 10 seconds to steal the pilot’s jacket and hat.

Jack and Jill went up the hill to celebrate their marriage.

Nine months later, they happily had some use for their baby carriage.

Two years later, they went up again, then their daughter had a brother.

But one little secret that no one knew was that Jack and Jill share a mother.