Two blondes walk into a bar, each orders a drink. They go and sit down and start toasting and chearing, "51 days! 51 days!!"

About five minutes later, another blonde walks in, orders a drink, and joins the other two in the chearing.

Finally, another blonde walkes in with what looks like a cardboard picture. She puts the picture thing in the middle of the table, and starts chearing with the others, "51 days! 51 days!!

The Bar Tender starts too get really curious, so he walks over to discover that the picture is a Cookie Monster puzzle.

He walks over to one of the blondes and asks, "What on earth are you doing??"

"Well," the blonde says, "everyone thinks blondes are so stupid, so we proved them wrong. On the box of this puzzle, it says 2-4 years, but we finished it in only 51 days!!!